Unit Two Exam

Question 1

In a subcutaneous injection, the substance (like insulin) is placed into the hypodermis via a needle and syringe. T OR F

Answer 1

True

Question 2

These cells produce melanin.

Answer 2

melanocytes

Question 3

When you think about the skin, you think about:
picking up a penny

washing your hair

goosebumps

all of the above

Answer 3

all of the above

Question 4

This is responsible for thermoregulation (cooling).

Answer 4

sweat glands

Question 5

This protects against mechanical damage and dessication.

Answer 5

keratin

Question 6

Nails are a continuation of this layer of the epidermis.

Answer 6

stratus lucidum

Question 7

This is responsible for thermoregulation (warming).

Answer 7

arrector pili muscles

Question 8

The nail grows from the:

Answer 8

root

Question 9

Another name for the hypodermis is the:

Answer 9

subcutaneous layer

Question 10

The structure that produces hair.

Answer 10

hair follicle

Question 11

This muscle causes your hair to stand on end and causes goose bumps.

Answer 11

arrector pili

Question 12

Exocrine glands in the skin include:
Answers:
sweat glands

sebaceous glands

mammary glands

all of the above

Answer 12

all of the above

Question 13

Feeling the softness of a cotton ball or pain of a hot flame is this function of the skin:

Answer 13

sensory organ

Question 14

The larger “balloons” located in the deep dermis & hypodermis detect deep touch and pressure.

Answer 14

Pacinian corpuscle

Question 15

Skin is the largest sensory organ in the body. T OR F

Answer 15

True

Question 16

Which term best describes the function of the hypodermis?

Answer 16

pillow

Question 17

These sensory receptors are found in the dermis, close to the epidermis, and detect pain, cold, and heat.

Answer 17

Bare nerve endings

Question 18

This layer of the dermis contributes to the formation of fingerprints.

Answer 18

papillary layer

Question 19

This layer of the dermis is composed of loose connective tissue.

Answer 19

papillary layer

Question 20

These specialized apocrine sweat glands found in the breast produce milk.

Answer 20

mammary glands

Question 21

The secretion from these exocrine glands contains fat and protein which, when mixed with bacteria on the skin, contains an odor.

Answer 21

apocrine sweat glands

Question 22

One function of the skin is to begin the formation of vitamin D. T OR F

Answer 22

True

Question 23

Lateral bone of forearm.

Answer 23

Radius

Question 24

Which 2 bones make up the pectoral girdle?

Answer 24

Clavicle and Scapula

Question 25

Hematopoiesis in the bone marrow is an example of this skeletal system function.

Answer 25

blood cell production

Question 26

Cancellous bone is composed of trabeculae resulting in a spongy appearance on the superficial skeleton. T OR F

Answer 26

True

Question 27

Touching the thumb to the opposite fingers in each hand is called:

Answer 27

opposition

Question 28

Closing a joint, or moving two bones closer together, is called:

Answer 28

flexion

Question 29

Have you ever banged your elbow and felt that tingle that radiates all the way down your forearm to your little finger? You hit the _____ nerve which runs along the side of the olecranon process.

Answer 29

ulnar

Question 30

The bony process of the temporal bone, which you can find behind your ear, serves as an attachment site for muscles.

Answer 30

Mastoid process

Question 31

This bone contains the foramen magnum.

Answer 31

Occipital bone

Question 32

The single bone making up the posterior aspect and base of the skull is the:

Answer 32

Occipital bone

Question 33

Children have red marrow only in the medullary cavities of bone so they can make lots of blood cells. T OR F

Answer 33

True

Question 34

Which are the floating ribs?

Answer 34

Ribs 11-12

Question 35

The Greek god, Atlas carried the weight of the world on his shoulders, much like this vertebra carries the weight of the skull:

Answer 35

Cervical vertebra 1

Question 36

The axial skeleton includes bones of the:

Answer 36

cranium

Question 37

Identify the heel bone:

Answer 37

Calcaneus

Question 38

The thigh bone is the:

Answer 38

Femur

Question 39

Identify the bone type of a lumbar vertebrae.

Answer 39

irregular

Question 40

This feature of a synovial joint cushions the ends of the bones:

Answer 40

articulating cartilage????

Question 41

The sutures between the skull bones are examples of these immovable joints:

Answer 41

synarthroses

Question 42

This anterior hip muscle which flexes the hip is actually 2 muscles that join to insert of the anterior femur:

Answer 42

Iliopsoas

Question 43

The primary muscle of breathing is the:

Answer 43

Respiratory diaphragm

Question 44

The motor neuron releases a chemical known as a neurotransmitter which will then stimulate the skeletal muscle cell. The name of that neurotransmitter is:

Answer 44

acetylcholine

Question 45

Functions of skeletal muscle includes: moving bones maintaining posture generating heat to help regulate body temperature all of the above are functions of skeletal muscle

Answer 45

all of the above are functions of skeletal muscle

Question 46

Think of the mineral coupling excitation (action potential) and contraction (sliding filament theory). This is a “great reason to drink your ____! “

Answer 46

milk

Question 47

Identify what you need to maximize ATP for muscle contraction: load carbohydrates to store glycogen do aerobic training to increase oxygen storing myoglobin supplement creatine phosphate to maximize ATP storage all of the above would maximize ATP for muscle contraction none of the above

Answer 47

all of the above would maximize ATP for muscle contraction

Question 48

This muscle raises the eyebrows and wrinkles the skin of the forehead:

Answer 48

Frontalis

Question 49

Please select the correct pairing of muscle with its action. Sternocleidomastoid, unilateral flexion & rotation of head to the opposite side Sternocleidomastoid, bilateral, full flexion of head suprahyoid muscles, speaking infrahyoid muscles, swallowing all of the above pairings are correct

Answer 49

all of the above pairings are correct

Question 50

This muscle fully abducts the arm.

Answer 50

Deltoid

Question 51

Which of the following is the deepest lateral muscle of the abdomen?

Answer 51

Transversus abdominus

Question 52

Protracting the scapula anteriorly like when you throw a ball.

Answer 52

Serratus anterior

Question 53

If you can imagine a train as a myofibril, each _____ would be a sarcomere.

Answer 53

boxcar

Question 54

Drinking milk is good for muscle contraction because it contains this mineral:

Answer 54

calcium

Question 55

In order for contraction to occur, this ion must bind to troponin to change shape so that myosin can bind to actin.

Answer 55

calcium

Question 56

When calcium inside the muscle cell is low, the muscle is:

Answer 56

relaxed

Question 57

These structures, which are invaginations of the sarcolemma, allow the action potential to travel to the interior of the muscle cell:

Answer 57

T tubules

Question 58

Which ion will bind to troponin to change shape?

Answer 58

calcium