Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

KN 251 Unit 3 > Posterior Muscles of the Leg > Flashcards

Posterior Muscles of the Leg Flashcards

1
Q

This compartment of the leg is the dorsiflexors or extensors and inverters. They are innervated by the deep fibular/peroneal nerve

A

Anterior Compartment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

This compartment of the leg has the evertors and helps with plantar flexion. The muscles are innervated by the superficial fibular/peroneal nerve

A

Lateral Compartment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

This group of muscles plantar flexes the foot and the toes and inverts the foot. They are innervated by the tibial nerve. Largest of the 3 compartments of the leg.

A

Posterior Compartment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the two components of the sciatic nerve

A 
Commin Fibular Nerve (Lateral) (Deep and Superficial Divides)
Tibial Nerve (Posteriorly)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the three superficial posterior leg muscles

A

Gastrocnemius
Soleus
Plantaris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The gastrocnemius and soleus together make up the

A

Triceps Surae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The most superficial muscle in the posterior leg, has 2 heads of origin and crosses 2 joints

A

Gastrocnemius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Origin and insertion of the gastrocnemius

A

Origin: Medial and lateral condyles of the femur

Insertion: Calcaneus via calcaneal tendon (achille’s tendon)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Innervation of the gastrocnemeus

A

Tibial Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Action of the gastrocnemeus

A

Plantar flexion and flexes the leg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Muscle that lies deep to the grastrocnemeus, looks like a fish.

An antigravity muscle that acts with the extensors of the leg to maintain balance. Slow but strong plantar flexor

A

Soleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Origin and insertion of the soleus

A

Origin: Head of the fibula, tibia

Insertion: Calcaneus via calcaneal tendon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Innervation of the soleus

A

Tibial nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Action of the soleus

A

Plantar flexion (no action on knee joint)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which muscle of the triceps surae is involved in slow movement, or taking a stroll?

Which is for long jumping or rapid running movements?

A

Soleus

Gastrocnemeus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Small muscle whose tendon runs between soleus and gastrocnemeus , crosses 2 joints. Absent in about 10% of population

A

Plantaris

17
Q

Origin and Insertion of the plantaris

A

Origin: Lateral condyle of the femur

Insertion: Calcaneus (not via tendon)

18
Q

Innervation of the plantaris

A

Tibial Nerve

19
Q

Action of the plantaris

A

Assists in knee flexion with gastrocnemeus

Plantar flexion at the ankle

20
Q

Name the 4 muscles of the deep compartment of the posterior leg

A

Popliteus
Flexor Digitorum Longus
Flexor Hallucis Longus
Tibialis Posterior

21
Q

The deep muscle located behind the knee in the popliteal fossa.

A

Popliteus

22
Q

Origin and insertion of the popliteus

A

Origin: Lateral condyle of the femur

Insertion: Tibia

23
Q

Innervation of the popliteus

A

Tibial nerve

24
Q

Action of the popliteus

A

Flexes the leg
medially rotates the leg
Unlocks knee from fully extended position

25
Q

One of the three vertically placed muscles in the leg, the most medial muscle. Usually the smallest of the three deep muscles

A

Flexor Digitorum Longus

26
Q

Origin and insertion of the flexor digitorum longus

A

Origin: Tibia

Insertion: Distal phalanges of toes 2 3 4 5

27
Q

Innervation of the flexor digitorum longus

A

Tibial Nerve

28
Q

Action of the flexor digitorum longus

A

Plantar flexion
Inversion
Flex toes

29
Q

The most laterally placed deep muscle, usually much larger than the flexor digitorum longus.

Used as the push off muscle during walking, running, and jumping

A

Flexor Hallucis Longus

30
Q

Origin and insertion of the flexor hallucis longus

A

Origin: Fibula and interosseous membrane

Insertion: Distal phalanx of big toe

31
Q

Innervation of the flexor hallucis longus

A

Tibial Nerve

32
Q

Action

A

Plantar flexion
Inversion
Flex the great toe
“Toe off”

33
Q

The deepest and centrally located muscle in the deep compartment between FDL and FHL

A

Tibialis Posterior

34
Q

Origin and insertion of the tibialis posterior

A

Origin: Tibia, fibula, interosseous membrane

Insertion: Metatarsal 2,3,4

35
Q

Innervation of the tibialis posterior

A

Tibial Nerve

36
Q

Action of the tibialis posterior

A

Inversion
Plantar flexion
Adduction

37
Q

Tom Dick and Harry , arrangement at the ankle medially to laterally

A

Tibialis posterior
Flexor Digitorum Longus
Flexor Hallucis Longus

38
Q

The 3 tendons of the deep posterior muscles are held in place by…

A

Flexor Retinaculum

KN 251 Unit 3 (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions