Question 1

Order the function of classes of joints from least movable to most movable.

Accepted Answer

Fibrous, cartilaginous, synovial

Question 2

Which of the following is NOT a type of fibrous joint?

Accepted Answer

Synchondrosis

Question 3

Which movement is classified as an angular movement?

Accepted Answer

Flexion

Question 4

The shoulder joint is best classified as which type of joint?

Accepted Answer

Ball-and-socket joint

Question 5

Which joint is associated with the rotator cuff muscles?

Accepted Answer

Shoulder joint

Question 6

Which movements are possible at both the elbow and knee joints?

Accepted Answer

Flexion and extension

Question 7

What is the primary function of skeletal muscle?

Accepted Answer

Movement of the body

Question 8

The pectoralis major is best classified by which muscle shape?

Accepted Answer

Convergent

Question 9

Which term describes a muscle with a saw-toothed appearance?

Accepted Answer

Serratus

Question 10

In muscle movement, what is meant by 'action'?

Accepted Answer

The specific movement produced by a muscle

Question 11

Which term describes a muscle that opposes the action of another muscle?

Accepted Answer

Antagonist

Question 12

In a lever system, what is the fulcrum?

Accepted Answer

The point of rotation

Question 13

Which muscle is primarily responsible for smiling?

Accepted Answer

Zygomaticus major

Question 14

Which muscle is responsible for raising the eyebrows?

Accepted Answer

Frontalis

Question 15

Which muscle is the antagonist to the gastrocnemius?

Accepted Answer

Tibialis anterior

Question 16

What is the main function of the sarcoplasmic reticulum in muscle cells?

Accepted Answer

Stores calcium ions

Question 17

Which structure marks the boundary of a sarcomere?

Accepted Answer

Z disc

Question 18

What is the role of the sodium/potassium pump in maintaining resting membrane potential?

Accepted Answer

It actively transports $$3 Na$^+$$ out and $$2 K$^+ in$$, maintaining a negative charge inside the cell

Question 19

What is the synapse called at the neuromuscular junction?

Accepted Answer

Motor end plate

Question 20

What is the term for the binding of the myosin head to actin during muscle contraction?

Accepted Answer

Cross-bridge formation

Anatomy & Physiology Study Guide: Joints, Muscles, and Movement

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