6.3 Limb Structure and Function

Question 1

Lower limb attachment to trunk of body?

Answer 1

Pelvic

Question 2

Upper limb attachment to trunk of body?

Answer 2

Pectoral

Question 3

What are the 3 segments of both the upper and lower extremities?

Answer 3

Proximal, Intermediate, and distal

Question 4

What are the functions of the lower limbs?

Answer 4

• Support body weight
• Provide locomotion
• Maintain balance

Question 5

What is the proximal segment of the lower limbs?

Answer 5

Femoral

Question 6

What are the 6 regions of the lower limb?

Answer 6

1) Gluteal
2) Femoral
3) Knee
4) Leg
5) Talocrural
6) Foot

Question 7

What is the intermediate segment of the lower limb?

Answer 7

Leg

Question 8

What is the distal segment of the lower limbs?

Answer 8

The foot

Question 9

Where does the inguinal ligament attach?

Answer 9

The ASIS to the pubic tubercle

Question 10

What fascia envelopes the thigh?

Answer 10

Fascia lata

Question 11

What three compartments make up the femoral area?

Answer 11

Anterior, posterior, and Medial compartments

Question 12

What divides the thigh into segments?

Answer 12

The intermuscular septa

Question 13

What 3 compartments are in the leg?

Answer 13

The Anterior, posterior, and lateral compartments

Question 14

What spans the space between the tibia and fibula and separates the compartments?

Answer 14

Interosseous membrane

Question 15

What is the upper extremity function?

Answer 15

• Positioning of hand
• Hand is used as tool
• Grasp, strike, object manipulation, and fine motor

Question 16

What makes up the proximal segment of the upper limbs?

Answer 16

The arm

Question 17

What makes up the intermediate segment of the upper limbs?

Answer 17

The forearm

Question 18

What makes up the distal segment of the upper limb?

Answer 18

The hand

Question 19

What two compartments is the arm divided into?

Answer 19

The anterior and posterior compartments

Question 20

What musculature does the anterior portion of the upper limbs contain?

Answer 20

The flexor musculature

Question 21

What musculature does the posterior portion of the upper limbs contain?

Answer 21

The extensor musculature

Question 22

What marks the transition from the trunk to the thigh?

Answer 22

The gluteal region marks the transition from trunk to thigh.

Question 23

What are the boundaries of the lower extremity?

Answer 23

Iliac crest, gluteal sulcus(fold), greater trochanter, and Natal (intergluteal) cleft

Question 24

What is the carrying angle?

Answer 24

When the arm is extended with the palm facing forward or up the bones of the upper arm and forearm are not perfectly aligned. The deviation from a straight line occurs in the direction of the thumb. This permits the arm to be swung without contacting the hips.

Question 25

What is the basic motion of the talocrural joint?

Answer 25

• The talocrural joint lies between the curl and talus regions.
• Allows for: plantar flexion and dorsiflexion

Question 26

What is the basic motion of the knee joint?

Answer 26

• Is a modified hinge joint between tibia and femur

- Allows for flexion and extension.

Question 27

What is the basic motion of the numero-ulnar joint?

Answer 27

• Between the humerus and ulna

- Allows for flexion and extension