Ch 2-3 Quiz Questions

Question 1

Give an example of a hinge joint

Answer 1

Humero-ulnar joint, interphalangeal joints

Question 2

Give an example of a pivot joint

Answer 2

Humeroradial joint and atlanto-axial joint

Question 3

Define an ellipsoid joint

Answer 3

Convex elongated surface and similar elongated concave surface.
Example: radiocarpal joint

Question 4

Define a saddle joint

Answer 4

Has 2 surfaces one concave one convex – oriented at right angles (reciprocally curved)
Example: sternoclavicular or carpometacarpal joint of thumb

Question 5

Element not always associated with synovial joints
A) Blood vessels
B) Bursa
C) Joint capsule
D) Synovial membrane

Answer 5

B) bursa

Question 6

T/F: condyloid joints have 2 degrees of freedom

Answer 6

True

Question 7

The fundamental materials that comprise
all connective tissues in the body: (3)

Answer 7

Fibrous proteins, ground substance, and cells

Question 8

what are the proteins that are involved in the sliding mechanism during muscular contraction

Answer 8

Actin and myosin

Question 9

T/F: Fusiform muscles are designed to produce power and tend to have a larger cross-section area.

Answer 9

False

True = Fusiform muscles are designed for mobility and low force over a long range

Question 10

How does a muscle grow stronger? (the most recognized in research)

Answer 10

sarcomeres are added in parallel

Question 11

T/F: Both muscle cross sectional area and moment arm have an impact on the maximal-effort torque for a given muscle.

Answer 11

True

Question 12

When performing a motion the body will recruit motor units in this order:

Answer 12

Smaller to larger