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216 week #8 Exam

Total questions: 34

Worksheet time: 20mins

Name
Class
Date
1.

Actin and Myosin are myofibrils

a)

True

b)

False

2.

Which type of joint gives you the largest range of motion?

a)

Pivot joint

b)

Ball-and-socket joint

c)

Hinge joint

d)

Gliding joint

3.
What is the name of the thick myofilaments?
a)
Actin
b)
Myosin
c)
Myoglobin
d)
Titan
4.
What is the normal resting potential of a neuron cell membrane?
a)
+40mV
b)
-30mV
c)
+55mV
d)
-70mV
5.
When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.
a)
Sodium, depolarization, potassium
b)
Potassium, depoloarization, sodium
c)
sodium, repolarization, potassium
d)
postassium, repolarization, sodium
6.

Dendritic cells eat up harmful microorganisms via the process

a)

Phagocytosis

b)

Phagocytes

c)

Phagocytose

7.

How many pairs of cervical spinal nerve are there?

a)

7

b)

8

c)

12

d)

5

8.

When the blood is poorly oxygenated, the epidermis of light-skinned people appears blue or gray. In dark-skinned people, it is apparent in their nail beds.

a)

Bruising

b)

Carotene

c)

Hemoglobin

d)

Erythema

e)

Cyanosis

9.
Too much of this neurotransmitter can cause severe muscle spasms and even death
a)
Serotonin
b)
Endorphins
c)
Acetylcholine
d)
GABA
10.

What layer of the skin contains sweat glands?

a)

Dermis

b)

Epidermis

c)

Hypodermis

d)

Subcutaneous

11.

The joints that allow the most movement are called

a)

Fixed

b)

Fibrous

c)

Cartilaginous

d)

Synovial

12.

An example of a Saddle joint is in the

a)

Knee

b)

Hip

c)

Thumb

d)

Vertebral column

13.

What is the definition of oxygen debt?

a)

Amount of oxygen used for aerobic activity minus amount of oxygen actually used

b)

Amount of oxygen needed at the end of a physical activity to break down any lactic acid

14.
The sense of hearing detects ________________ stimuli.
a)
electromagnetic
b)
thermal
c)
mechanical
d)
chemical
15.
Mature bone cells that live in tiny cavities within the bone are called?
a)
osteocytes
b)
osteoblasts
c)
osteoclasts
d)
osteons
16.
Structure #4 is a/n
a)
osteon
b)
osteocyte
c)
lacuna
d)
osteoblast
17.
What type of neuroglial cell attaches neurons to capillaries?
a)
Astrocyte
b)
Oligodendrocytes
c)
Microglial
d)
Ependymal
18.
What is the main function of oligodendrocytes?
a)
Production of insulation and protection
b)
Maintain the health of the neuron
c)
Brace and support the neuron to it's nurtient supply
d)
Lining of the central cavities to circulate spinal fluid
19.
What gland is responsible for keeping our hair soft and is a barrier for bacteria and fungi?
a)
Sudoriferous
b)
Sebaceous
c)
Melanin
d)
Carotene
20.

Which type of cell is classified as a bone breaker?

a)

osteoclast

b)

osteoblast

c)

osteocyte

d)

osteodontknow

21.

The smooth muscle its formed by

a)

Involuntary muscles

b)

Voluntary muscles

c)

flexibility muscles

d)

any

22.

The smooth muscle is located in the

a)

Locomotor system

b)

Digestive system

c)

inmune system

d)

any

23.

What is Osteoporosis?

a)

Bone density decrease

b)

Only affects women

c)

Something you only have to worry about after you're 50+ years old

d)

Bone density increase

24.

The basic structural unit of the nervous system:

a)

nerve

b)

neuron

c)

brain

d)

spinal cord

25.

Nerve fibers in the neuron that carries impulses toward the cell body:

a)

axon

b)

dendrite

c)

nucleus

d)

myelin sheath

26.

A single fiber in the neuron that carries impulses away from the cell body:

a)

axon

b)

dendrite

c)

myelin sheath

d)

nucleus

27.

The smallest unit of contraction is the

a)

Myosin

b)

Sarcomere

c)

Myofibril

d)

Fascicle

28.

Slow twitch fibers are red because they

a)

Store more carbon dioxide

b)

Contain more myoglobin

c)

Contain more hemoglobin

d)

We went over this????

29.

The following is NOT one of the 3 Joint Classifications..

a)

Cartilaginous

b)

Cartilage

c)

Fibrous

d)

Synovial

30.
Identify the joint action being performed.
a)
Extension
b)
Flexion
c)
Abduction
d)
Adduction
31.

Causes lengthwise growth of a long bone

a)

Periosteum

b)

Red Bone Marrow

c)

Medullary Cavity

d)

Compact bone

e)

Epiphyseal plate

32.
You called 911 to request emergency assistance for a victim burned in a fire. The victim tells you that he is in a lot of pain. His skin has many blisters and is severely swollen.   

What should you tell the 911 operator when he asks, "How bad are the burns?"
a)
"They are first-degree burns."
b)
"They are second-degree burns."
c)
"They are third-degree burns."
33.

What nutritional deficiency is shown in the picture?

a)

Osteoporsis

b)

Scurvy

c)

Anemia

d)

Rickets

34.
a signal molecule that transmits nerve impulses across synapses
a)
neuron
b)
neurotransmitter
c)
nerve
d)
action potential

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