Muscles Pt5

Question 1

What is the action of the Tensor Fasciae Latae? (The thigh)

Answer 1

Flex the hip, medially rotate the hip, abduct the hip and stabilise the hip.

Question 2

What is the action of the piriformis?

Answer 2

Laterally rotate the hip, abduct the hip when the hip is flexed.

Question 3

What muscle is the sciatic nerve located under?

Answer 3

Piriformis

Question 4

What is the action of the Quads?

Answer 4

All: extend the knee
Rectus Femoris: flex the hip

Question 5

The inability to stack the pelvis in neutral whilst kneeling can be caused by a tight what?

Answer 5

Recuts Femoris

Question 6

What are the three muscles of the hamstrings?

Answer 6

The biceps Femoris, semimembranosus and semitendinous.

Question 7

What is the action of the biceps Femoris?

Answer 7

Flex the knee, laterally rotates the flexed knee, extends the hip, laterally rotates the hip and tilt the pelvis posteriorly.

Question 8

What is the action of the semembranosus and the semitendinosus?

Answer 8

Flex the knee, medially rotate the flexed knee, extend the hip, medially rotate the hip and tilt the pelvis posteriorly.

Question 9

What is the action of the transverse abdominis?

Answer 9

To compress abdominal contents. (Big stabilising muscle)

Question 10

What is the action of the internal obliques?

Answer 10

Unilaterally: laterally flex the vertebral column to the same side, rotate the vertebral column to the same side.
Bilaterally: flex the vertebral column and compress abdominal contents.

Question 11

What is the action of the external obliques?

Answer 11

Unilaterally: laterally flex the vertebral column to the same side. Rotate the vertebral column to the opposite side.
Bilaterally: flex the vertebral column and compress the abdominal contents.

Question 12

What is the action of the rectus abdominis?

Answer 12

Flex the vertebral column (stabiliser muscle due to size and location)