Brazil_Chandler Test- Muscular System

Question 1

5. What is the section of the arm that connects the ulna and radius to the humerus?

Answer 1

Elbow

48. Questions- A Look Beneath the Skin

Question 2

6. What is the area stretching from the shoulder to the elbow?

Answer 2

Upper Arm

48. Questions- A Look Beneath the Skin

Question 3

9. Name a fact about Slow Twitch muscle.

Answer 3

1. Is found in great amount on a marathon runner
2. Uses more oxygen than fast twitch
3. Has more mitochondria than fast twitch
4. Is darker than fast twitch muscle

Question 4

18. What is the muscle on the lower arm of a chicken that does the same thing as the triceps brachii?

Answer 4

Extensor

48. Questions- A Look Beneath the Skin

Question 5

19. On a chicken wing what is the muscle opposite of the biceps brachii?What does it do?

Answer 5

Triceps brachii, extensor

48. Questions- A Look Beneath the Skin

Question 6

20. In the middle of your upper arm what muscle is there and what type?

Answer 6

Triceps brachii, flexor

48. Questions- A Look Beneath the Skin

Question 7

21. Muscles that are not under conscious control are…

Answer 7

Involuntary

Question 8

33. Name the extensor on your upper arm.

Answer 8

Triceps brachii

39. CLF-Exterior Muscle of the Body

Question 9

44. What are the muscles used in closing the jaw?

Answer 9

Masseter, Temporalis

46. CLF- Muscles of the Head

Question 10

45. What muscle is used in frowning?

Answer 10

Frontalis

46. CLF- Muscles of the Head

Question 11

56. Where is your rectus abdominus?

Answer 11

In the middle of your stomach also know as your abs.

39. CLF-Exterior Muscle of the Body

Question 12

65. Where is your hamstring?

Answer 12

On the backs of your thighs

39. CLF-Exterior Muscle of the Body

Question 13

71. What muscle extends of straightens the forearm?

Answer 13

Triceps brachii

39. CLF-Exterior Muscle of the Body

Question 14

79. What are the strap like muscles that extend from the ribs to the pelvis?

Answer 14

The rectus abdominus

39. CLF-Exterior Muscle of the Body

Question 15

84. Essay. Explain how muscles work as a pair to bend and straighten the arm at the elbow causing movement at the joint. Make sure you discuss the type of joint movement.

Answer 15

Flexion of a joint is a decease in the joint angle from the body’s anatomic position. When the elbow is bent the forearm is flexed which means that the flexor is contracted or has pulled the bone of the forearm. Most flexion takes place in a forward direction. The exception to this is the leg where flexion of the leg results in the bending of the knee. Extension of the joint is when the joint is returned to anatomic position or increased the angle of the joint, which means the extensor is contracted. An example of this is when the triceps brachii (extensor) contracts to straighten the arm. The biceps brachii muscle (flexor) in the arm contracts to bend the elbow. Muscles work in pairs so that at the same time, the biceps brachii muscle (flexor) contracts to bend the joint and the triceps brachii returns to its original length. To straighten the arm or extend the joint, the triceps brachii(extensor) contracts while the biceps brachii returns to its original length.

39. CLF-Exterior Muscle of the Body