Chapter 12

Question 1

What are the three arm anterior compartment muscles (flexors)

Answer 1

1) biceps brachii - lifts radius
2) brachialis - lifts ulna
3) brachioradialis - forearm muscle

Question 2

What are the two arm posterior compartment muscles (extensor)

Answer 2

1) anconeus - extends elbow
2) triceps brachii - prime mover of elbow extension

Question 3

What is the thenar group?

Answer 3

Forms allmass at the base of the thumb

Question 4

What is the hypothenar group?

Answer 4

Forms The smaller mass at the base of the little finger

Question 5

What is the midpalmar group?

Answer 5

Occupies The space from 1st to 4th fingers

Question 6

What are the three groups of thigh muscles

Answer 6

1) anterior extensor
2) posterior flexor
3) medial femoris

Question 7

What muscles are part of the thigh anterior extensor

Answer 7

Quadriceps femoris group
- rectus femoris
- vastus lateralis
- vastus medialis
- vastus intermedius

Question 8

What muscles are part of the thigh posterior flexor

Answer 8

Hamstring femoris group
- biceps femoris
- semimembranous
- semitendinosus

Question 9

What thigh muscle makes up the medial femoris group

Answer 9

The gracilis