wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Endocrine System

Total questions: 104

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

Endocrine glands secrete _

a)

Hormones

b)

Neurotransmitters

c)

A wide range of chemical substances

2.

What is the endocrine system?

a)

A system of vessels that circulates blood around the body.

b)

A group of bones and tissue that provides support and structure for the body.

c)

A group of glands that work together with the nervous system to coordinate all body functions

d)

A group of organs that is responsible for eliminating wastes.

3.

What is the main function of the endocrine system?

a)

It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.

b)

It creates electrical messages that are sent around the body to maintain homeostasis.

c)

It maintains the correct level of oxygen in the body to maintain homeostasis.

d)

It releases waste from the body to maintain homeostasis.

4.

The "master gland" is known as the __________________.

a)

thyroid gland.

b)

adrenal gland.

c)

pancreas.

d)

pituitary gland.

5.
The gland that stimulates body metabolism
a)
Thyroid
b)
testes
c)
ovary
d)
adrenal
6.

The adrenal glands release adrenaline to help the body regulate _________________.

a)

diseases

b)

body temperature.

c)

stress.

d)

hormones.

7.

Which of the following are chemicals that travel in the blood and cause changes in different parts of the body?

a)

Hormones

b)

Glands

c)

Parathyroid

d)

Adrenal Gland

8.

The response to stress is called

a)

Stay or Stray Response

b)

Fight or Stay Response

c)

Flee or Stray Response

d)

Fight or Flight Response

9.

Which term refers to the body's use of energy for energy and growth?

a)

Excretion

b)

Metabolism

c)

Digestion

d)

Respiration

10.

Hormone regulation operates under which type of feedback mechanism?

a)

positive feedback

b)

negative feedback

c)

zero feedback

d)

Hormones are not regulated

11.

Feedback loops are important because they allow organisms and the environment to

a)

change based on new inputs

b)

fall apart

c)

change based on new outputs

d)

maintain balance

12.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
13.
The pituitary gland is divided into 2 lobes:  anterior and posterior lobes.
a)
true
b)
false
14.
Where are the adrenal glands located?
a)
at the base of the brain
b)
in the pelvic area
c)
on top of each kidney
15.
An organ that produces secretions called hormones is known as a :
a)
chemical
b)
gland
c)
hormone
d)
duct
16.
The Islets of Langerhans are located in the ______.  They produce glucagon and insulin. 
a)
thymus
b)
gonads
c)
thyroid
d)
pancreas
17.
This gland is located between the lungs behind the sternum and secretes thymosin that helps mature WBC's in our bodies when we are children. 
a)
thyroid
b)
parathyroid
c)
thymus
d)
brain stem
18.
The _____ gland produces hormones that regulate the body's metabolic rate. Its correct functioning depends on having a good supply of iodine from the diet.  It has a butterfly shape and is located in the anterior neck.
a)
thymus
b)
thyroid
c)
pineal gland
d)
pituitary gland
19.
What other system is the pancreas a part of?
a)
circulatory system
b)
digestive system
c)
lymphatic system
20.
___________is a hormonal disorder that develops when your pituitary gland produces too much growth hormone during adulthood. When this happens, your bones increase in size, including those of your hands, feet and face.
a)
Addison's Disease
b)
Cushing's Disease
c)
Acromegaly
d)
Grave's Disease
21.
You are driving down the rode and come upon an accident.  You notice the victim is your best friend and the car door is stuck.  Your heart rate increases and your mental alertness is enhanced.  You are able to open the car door for an unexplained reason.  What is this reason?
a)
Your adrenal gland is producing epinephrine
b)
Your pancreas is producing insulin
c)
Your thyroid is producing T3 and T4
22.
In females, breast milk production is the result of:
a)
growth hormone
b)
vasopressin
c)
prolactin
d)
adrenaline
23.
The symptoms of your ________ level being elevated are nervousness, weight loss and increased metabolism. 
a)
adrenaline
b)
glucagon
c)
thyroxin
d)
parathormone
24.
The overproduction or under production of this  hormone can lead to giantism or dwarfism. 
a)
oxytocin
b)
growth hormone
c)
prolactin
25.
_______ is a sex hormone that plays important roles in the body. In men, it's thought to regulate sex drive (libido), bone mass, fat distribution, muscle mass and strength, and the production of red blood cells and sperm
a)
Estrogen
b)
Testerone
c)
Oxytocin
26.
________ hormones play an essential role in the growth and development of female secondary sexual characteristics such as breasts, pubic and armpit hair, endometrium, and the regulation of the menstrual cycle and reproductive system.
a)
Oxytocin
b)
Testerone
c)
Estrogen
27.
_______ is a hormone that acts on organs in the body (including the breast and uterus) and as a chemical messenger in the brain, controlling key aspects of the reproductive system, including childbirth and lactation, and aspects of human behavior
a)
Estrogen
b)
Testerone
c)
Oxytocin
28.
_____ disease is a disorder that occurs when your body produces insufficient amounts of cortisol and aldosterone  produced by your adrenal glands. Symptoms include fatigue, tan colored skin, low BP and hypoglycemia. 
a)
Cushing's 
b)
Addison's
c)
hypothyroidism
d)
hyperthyroidism
29.
Hormone release provides immediate body responses because the hormones are directed toward:
a)
target organ cells
b)
cardiac cells
c)
nerve cells
d)
synaptic junctions
30.
If you have diabetes, you most likely have a problem with this hormone.
a)
ADH
b)
Glucagon
c)
Insulin
d)
PTH
31.

These release testosterone, which controls changes in a male's body and regulates sperm production.

a)

Ovaries

b)

Target Cells

c)

Parathyroids

d)

Testes

32.
What is gland #3?
a)
Adrenal Gland
b)
Pancreas
c)
Ovaries
d)
Testes
33.
Letter H is pointing to
a)
Thymus
b)
Pancreas
c)
Pituitary
d)
Pineal
34.
Letter I is pointing to
a)
Testes
b)
Oviducts
c)
Ovaries
d)
Adrenals
35.

Letter J is pointing to

a)

Ovaries

b)

Pineal Gland

c)

Adrenal

d)

Testes

36.

The gland labeled 4 in the diagram is?

a)

the thymus gland

b)

the thyroid gland

c)

the parathyroid glands

d)

the adrenal glands

37.
targets bone and muscle to promote growth and development
a)
growth hormone
b)
prolactin
c)
oxytocin
d)
ADH (antidiuretic hormone)
38.
targets the brain and make people sleepy when its dark
a)
melanin
b)
melanoma
c)
melatonin
d)
melons
39.
a disease by which people cannot control sugar levels in the blood
a)
hypertension
b)
sleep apnea
c)
diabetes
d)
hyperthyroidism
40.
name the organ labeled 4
a)
pituitary gland
b)
thyroid gland
c)
pancreas
d)
thymus
41.
The correct order of the glands/organs shown in the diagram is 
a)
hypothalamus, thyroid, pancreas, kidneys, ovaries, testes
b)
pituitary, thyroid, adrenal, pancreas, ovaries, testes
c)
pituitary, parathyroid, pancreas, adrenal, testes, ovaries
d)
non are correctly ordered
42.
Which of the following is a function of the Endocrine System?
a)
growth and development
b)
maintaining homeostasis
c)
response to stress and injury
d)
all of the above
43.
Which of the following produces adrenaline?
a)
thyroid gland
b)
parathyroid glands
c)
pancreas
d)
adrenal glands
44.
Which hormone is not secreted by the anterior pituitary.
a)
Oxytocin
b)
FSH
c)
TSH
d)
ACTH
45.
What element is needed to produce proper amounts of Thyronine (T3) and Thyroxine (T4)?
a)
Iodine
b)
Iron
c)
Calcium
d)
Zinc
46.
Which hormone is secreted directly from the Posterior Pituitary Gland?
a)
ADH
b)
LH
c)
ACTH
d)
FSH
47.
Which hormone is secreted directly from the Posterior Pituitary Gland?
a)
Oxytocin
b)
Aldosterone
c)
Epinephrine
d)
Cortisol
48.
Insulin is secreted by:
a)
α-cells in the Islets of Langerhans
b)
β-cells in the Islets of Langerhans
c)
β-cells in the pancreatic medulla
d)
α-cells in the pancreatic cortex
49.
Glucagon is secreted by:
a)
α-cells in the Islets of Langerhans
b)
β-cells in the Islets of Langerhans
c)
β-cells in the pancreatic medulla
d)
α-cells in the pancreatic cortex
50.
The hormone secreted by the adrenal medulla in response to a stressor is:
a)
Aldosterone
b)
Cortisol
c)
Epinephrine
d)
ACTH
51.
Thickening of the endometrium is controlled by:
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
52.
The thickened endometrium is maintained by:
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
53.
The ovarian follicle is stimulated through development by:
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
54.
Ovulation is triggered by a surge in:
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
55.
The corpus luteum continues to secrete which hormone after ovulation?
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
56.
Shedding of the endometrium is triggered by a drop in:
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
57.
The levels of Calcium in the blood are controlled by the:
a)
Parathyroid Glands
b)
Thyroid Gland
c)
Pineal Gland
d)
Adrenal Gland
58.
Which of the following is a unique function of Cortisol?
a)
Reduce Inflammation
b)
Increase blood glucose
c)
Dilate air passage ways
d)
Increase heart beat
59.
A person who is having an anaphylactic reaction is given an inject of epinephrine. The purpose of this is primarily to:
a)
Dilate pupils
b)
Open air passage ways
c)
Increase blood sugar
d)
Dilate blood vessels in muscles
60.
The hormone that lowers blood sugar is:
a)
Insulin
b)
Glucagon
c)
Cortisol
d)
GnRH
61.
Hormones that enter cells directly to cause changes are usually:
a)
Steroids
b)
Proteins
62.
The second messenger produced by the action of many protein hormones is:
a)
cAMP
b)
Adenylate Cyclase
c)
G-Protein
d)
Epinephrine
63.
Diabetes is a disease in which the body doesn't produce insulin or can't process it, resulting in 
a)
low glucose levels.
b)
high glucose levels.
c)
high insulin levels.
d)
sickle cell anemia.
64.
Symptoms often associated with diabetes are
a)
Excessive thirst.
b)
fatigue.
c)
frequent urination.
d)
all of these answers.
65.

What is the fuel the body produces when the food we eat is digested?

a)

Insulin

b)

Glucagon

c)

Glucose

d)

Food

66.

What hormone is released by the pancreas when the blood sugar level is LOW?

a)

glucose

b)

glucagon

c)

insulin

d)

glycogen

67.
Gigantism results from abnormal secretion of what hormone?
a)
Estrogen
b)
Androgen
c)
Somatotropin
d)
Epinephrine
68.
A goiter is an enlargement of what gland?
a)
Pituitary
b)
Adrenal
c)
Mammary
d)
Thyroid
69.
Which of the following anterior pituitary hormones stimulates growth of long bones?
a)
Prolactin
b)
Thyrotropin
c)
Adrenocorticotropic hormone
d)
Human growth hormone
70.
Which of the following anterior pituitary hormones stimulates Cortisol production?
a)
Adrenocorticotropic hormone
b)
Insulin like growth factors
c)
Luteinizing hormone
d)
Prolactin
71.
Which of the following hormones opposes the action of parathyroid hormone?
a)
Thyroid stimulating hormone
b)
Testosterone
c)
Insulin
d)
Calcitonin
72.
The responses of the body to long term stress does NOT include which one of the following responses.
a)
Glycogenolysis
b)
Increased heart rate
c)
Gluconeogenesis
d)
Lipolysis
73.
Glands located on the kidneys that regulate the use of carbohydrates and salt, and prepare the body for emergencies.
a)
Thyroid gland
b)
Pancreas
c)
Adrenal glands
d)
Ovaries/testes
74.
The Adrenal Cortex secretes what type of hormone?
a)
Amine
b)
Peptide
c)
Steroid
d)
Glyco-Protein
75.
Glucocorticoids and Mineralocorticoids are secreted by which organ?
a)
Adrenal Cortex
b)
Adrenal Medulla
c)
Thalamus
d)
Pancreas
76.
Progesterone is responsible for?
a)
Regulation of menstrual cycle
b)
Release of glucocorticoids
c)
Increase blood sugar level
d)
Decrease stress level
77.
Adrenocorticotropic hormone (ACTH) from the pituitary stimulates the __________ glands to release _________.
a)
Pineal, cortisol
b)
Adrenal, cortisol
c)
Pineal, TSH
d)
Adrenal, TSH
78.
What hormone raises blood calcium levels?
a)
Epinephrine
b)
Calcitonin
c)
PTH
d)
T3 and T4
79.

The Adrenal gland secretes the following except:

a)

cortisol

b)

ADH

c)

epinephrine

d)

aldosterone

80.
Which of the following terms means insufficient sugar in the blood?
a)
hypercalcemia
b)
hyponatremia
c)
hyperkalemia
d)
hypoglycemia
81.
Which hormone promotes the kidneys to reabsorb water?
a)
oxytocin
b)
LH
c)
ADH
d)
PRL
82.
Which of the following hormones is NOT secreted by the anterior pituitary?
a)
GH
b)
oxytocin
c)
TSH
d)
PRL
83.
Which of the following conditions is characterized by being abnormally short in height?
a)
dwarfism
b)
cretinism
c)
acromegaly
d)
gigantism
84.
An enlargement of the thyroid gland is called:
a)
insulinoma
b)
goiter
c)
adenocarcinoma
d)
myxedema
85.
What does FSH stand for?
a)
Fat Shoe House
b)
Fatigued Side Head
c)
Follicle-Stimulating Hormone
d)
Fear-Stimulating Hormone
86.
What hormones stimulate body hair, facial hair, large muscles and a deep voice?
a)
Androgens
b)
Estrogens
c)
ADH and TSH
d)
Aldosterone and cortisone
87.
Acromegaly is caused by the oversecretion of somatotropin in adults causing:
a)
Enlarged bones in the hands, feet, and face
b)
Extreme tallness and retarded mental development
c)
Polyuria, polydipsia, and dehydration
d)
A small body size and short extremities
88.
What symptoms would be exhibited by someone with hyperthyroidism?
a)
Weakness, constipation, and dry skin
b)
Lethargy, weight loss, and mood face
c)
Hyperglycemia, polyuria, and polyphagia
d)
Extreme nervousness, irritability, and rapid pulse
89.
Who would have the greatest likelihood of developing Type II diabetes mellitus?
a)
Thin child
b)
Obese child
c)
Thin adult
d)
Obese adult
90.
Cushing's syndrome is a disorder of the:
a)
Adrenal gland
b)
Thyroid gland
c)
Pituitary gland
d)
Pancreas
91.
What endocrine disorder can occur in countries that do not have iodized salt?
a)
Addison's disease
b)
Cushing's syndome
c)
Hypothyroidism
d)
Dwarfism
92.
What disorder might be treated with diet, exercise, and oral hypoglycemic drugs?
a)
Goiter
b)
Hyperthyroidism
c)
Diabetes mellitus
d)
Acromegaly
93.
Which of the following symptoms can be signs of hypoglycemia, also known as insulin shock:
a)
Lack of Coordination
b)
Dizzy
c)
Inappropriate Demeanor
d)
All of the Above
94.
Epinephrine and norepinephrine are considered the fight or flight hormones because of their affect in emergency situations.
a)
True 
b)
False
95.
The thyroid gland enlarges, and the patient becomes nervous, has an intolerance to heat, loses weight, sweats and may have diarrhea, tremors and palpitations.
a)
Cretinism
b)
Acromegaly
c)
Grave's Disease
d)
Addison's Disease
96.

An avalanche had snow, debris and most of the mountainside sliding down the hill. What kind of feedback is shown in this example?

a)

Positive feedback mechanism

b)

Hormone

c)

Homeostatic state

d)

Negative feedback mechanism

97.

The body works with connective tissue in order to repair a broken bone. What type of feedback mechanism is utilized when the bone knitting stops the repair after the healing has been completed?

a)

Positive feedback mechanism

b)

Hormone

c)

Homeostatic state

d)

Negative feedback mechanism

98.

Luteinizing Hormone starts in the ______ and stimulates the ________.

a)

Pituitary: Ovaries and Testicles

b)

Hypothalamus: Testicles

c)

Pineal: Thyroid

d)

None of the above

99.

Organs not in the endocrine system are also impacted by the hormones produced by endocrine glands. What outside organ does Anti-Diuretic Hormone (ADH) impact?

a)

Stomach

b)

Intestines

c)

Liver

d)

Kidneys

100.
Which of the following is an example of a positive feedback loop?
a)
regulation of body temperature at 37 degrees Celsius 
b)
regulation of blood sugar levels
c)
contractions during childbirth
d)
regulation of water levels in humans
101.
these hormones promote secondary sex characteristics in females
a)
testosterone and GH
b)
epinephrine and nor-epinephrine
c)
estrogen and progesterone
d)
prolactin and oxytocin
102.

The group of cells in the islets of Langerhans of the pancreas that are responsible for secreting insulin are the ____.

a)

alpha cells

b)

beta cells

c)

chief cells

d)

leukocytes

103.

A condition of the pituitary gland due to a deficiency of ADH in which an individual produces 20 to 30 liters of urine daily and can become severely dehydrated is known as ____.

a)

addison's disease

b)

crohn's disease

c)

diabetes mellitus

d)

diabetes insipidus

104.

The mineralocorticoid hormone secreted by the adrenal cortex that is responsible for the regulation of sodium reabsorption and potassium excretion by the kidneys is ____.

a)

cotisol

b)

renin

c)

testosterone

d)

aldosterone