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Worksheets

Endocrine System

Total questions: 21

Worksheet time: 12mins

Name
Class
Date
1.

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.

2.
An organ that produces secretions called hormones is known as a :
a)
chemical
b)
gland
c)
hormone
d)
duct
3.

Cells that have receptors for a particular hormone.

a)

gland cells

b)

neurons

c)

hormones

d)

target cells

4.

Endocrine glands secrete _

a)

Hormones

b)

Neurotransmitters

c)

A wide range of chemical substances

5.

Produces the hormone insulin and glucagon, which controls the level of glucose in the blood.

a)

Thyroid Gland

b)

Pancreas

c)

Thymus Gland

d)

Pituitary Gland

6.

Which of the following produces adrenaline?

a)

thyroid gland

b)

adrenal medulla

c)

pancreas

d)

adrenal cortex

7.

Which of the following hormones opposes the action of parathyroid hormone?

a)

Thyroid stimulating hormone

b)

Testosterone

c)

Insulin

d)

Calcitonin

8.

Cortisol is produced by the...

a)

adrenal cortex

b)

anterior pituitary

c)

adrenal medulla

d)

posterior pituitary

9.

Thyroxine (T3) is made by the...

a)

Thymus

b)

Thyroid

c)

Parathyroids

d)

Testes

10.

Androgens are made by the...

a)

Adrenal cortex

b)

Adrenal medulla

c)

Anterior pituitary

d)

Posterior Pituitary

11.

Which of the following functions is unique to Cortisol?

a)

Increase blood glucose

b)

Inhibit immune system

c)

Increase heart rate

12.

This hormone maintains circadian rhythms and is most active during sleep

a)

melanin

b)

melatonin

c)

Thymosin

d)

Thyroid stimulating hormone

13.

____ is the hormone that controls how much ATP energy is available to the cells.

a)

cortisol

b)

thyroxine (T3/T4)

c)

melatonin

d)

androgens

14.

Hormones from this gland help the immune system develop during childhood.

a)

parathyroid

b)

thymus

c)

pancreas

d)

adrenal

15.

Which of the following are tropic hormones?

(select all that apply)

a)

Growth Hormone

b)

ACTH

c)

TRH

d)

TSH

16.

Which of the following hormones are made by the pituitary gland? (select all that apply)

a)

Vasopressin (ADH)

b)

TRH

c)

TSH

d)

Prolactin

17.

What is the function of TSH?

a)

Stimulating the thymus gland to produce white blood cells

b)

Stimulating the thyroid gland to release TH (Thyroid Hormone)

c)

Stimulating the secretion of testosterone from the testes

d)

Stimulating the tibia to grow in length

18.

Which hormone stimulates the cortex of the adrenal glands to secrete hormone?

a)

ADH

b)

ACTH

c)

Vasopressin

d)

TSH (Thyroid stimulating hormone)

19.

Which hormone stimulates the growth of muscle fiber and bones?

a)

GH

b)

ADH

c)

ACTH

d)

Vasopressin

20.

This gland is a link between the nervous and endocrine systems and releases antidiuretic hormone and oxytocin.

a)

Adrenal

b)

Hypothalamus

c)

Pituitary

d)

Thyroid

21.

What is positive feedback?

a)

It is when something good happens in the endocrine system.

b)

It is when the amount of hormones produced is balanced.

c)

It is when the production of more hormones is counteracted.

d)

It is when increased hormone secretion is enhanced to produce even more hormones.