The Muscular System 1.2

Question 1

Muscle group at shoulder (7)

Answer 1

Deltoid, pectorals, trapezius, biceps, triceps, latissimus dorsi, rotator cuff

Question 2

Muscle group at elbow (2)

Answer 2

Biceps, triceps

Question 3

Muscle group at hip (2)

Answer 3

Gluteals, hip flexor

Question 4

Muscle group at knee (2)

Answer 4

Quadriceps, hamstrings

Question 5

Muscle group at ankle (2)

Answer 5

Tibialis anterior, gastrocnemius

Question 6

Muscles and movement (5)

Answer 6

• tendons
• only pull
• antagonist relaxes
• agonist contacts
• antagonistic pairs

Question 7

In an antagonistic pair, which muscle contracts?

Answer 7

Agonist

Question 8

In an antagonistic pair, which muscle relaxes?

Answer 8

Antagonist

Question 9

What does a tendon actually do?

Answer 9

Transfers effort from contracting muscle to the bone

Question 10

Movement made by biceps and triceps, and where

Answer 10

Flexion and extension at elbow

Question 11

Movement made by hip flexors and gluteals, and where

Answer 11

Flexion and extension at hip

Question 12

Movement made by hamstrings and quadriceps and where

Answer 12

Flexion and extension at knee

Question 13

Movement made by tibialis anterior and gastrocnemius and where

Answer 13

Dorsiflexion and plantar flexion at ankle

Question 14

Isotonic contraction definition

Answer 14

Muscle changing length when it contracts

Question 15

Isometric contraction definition

Answer 15

Muscle staying same length when contracting

Question 16

Why is there no movement in an isometric contraction?

Answer 16

Muscles are working to keep joint stationary

Question 17

Concentric definition

Answer 17

Muscle contracts and shortens

Question 18

Eccentric definition

Answer 18

Muscle contracts and lengthens