forearm_flashcards_updated

Question 1

How are the forearm muscles divided?

Answer 1

Anterior, posterior, and lateral compartments.

Question 2

What type of muscles are in the anterior compartment?

Answer 2

Flexor muscles.

Question 3

What type of muscles are in the posterior compartment?

Answer 3

Extensor muscles.

Question 4

What type of muscles are in the lateral compartment?

Answer 4

Muscles that act on the wrist and forearm (e.g., supination and pronation).

Question 5

How is the anterior compartment organized?

Answer 5

Into four layers.

Question 6

How is the posterior compartment organized?

Answer 6

Into two layers (superficial and deep).

Question 7

How is the lateral compartment organized?

Answer 7

Into superficial and deep layers.

Question 8

Which muscles are part of Layer 1 of the anterior compartment?

Answer 8

Pronator Teres, Flexor Carpi Radialis, Palmaris Longus, Flexor Carpi Ulnaris.

Question 9

What is the origin of Pronator Teres?

Answer 9

Medial epicondyle of the humerus.

Question 10

Where does Pronator Teres insert?

Answer 10

Anterolateral surface of the radius.

Question 11

What is the function of Pronator Teres?

Answer 11

Pronation of forearm and assists in flexing the arm.

Question 12

What is the origin of Flexor Carpi Radialis?

Answer 12

Medial epicondyle of the humerus.

Question 13

Where does Flexor Carpi Radialis insert?

Answer 13

Base of the 2nd and 3rd metacarpals.

Question 14

What is the function of Flexor Carpi Radialis?

Answer 14

Flexes and abducts the hand.

Question 15

What is the origin of Palmaris Longus?

Answer 15

Medial epicondyle of the humerus.

Question 16

Where does Palmaris Longus insert?

Answer 16

Palmar aponeurosis.

Question 17

What is the function of Palmaris Longus?

Answer 17

Flexes the hand.

Question 18

What is the origin of Flexor Carpi Ulnaris?

Answer 18

Medial epicondyle of the humerus.

Question 19

Where does Flexor Carpi Ulnaris insert?

Answer 19

Pisiform, hook of hamate, base of the 5th metacarpal.

Question 20

What is the function of Flexor Carpi Ulnaris?

Answer 20

Flexes and adducts the hand.

Question 21

Which muscle is part of Layer 2 of the anterior compartment?

Answer 21

Flexor Digitorum Superficialis.

Question 22

What is the origin of Flexor Digitorum Superficialis?

Answer 22

Medial epicondyle of the humerus, ulna, and anterior radius.

Question 23

Where does Flexor Digitorum Superficialis insert?

Answer 23

Base of the middle phalanges of the 2nd to 5th fingers.

Question 24

What is the function of Flexor Digitorum Superficialis?

Answer 24

Flexes the 2nd to 5th fingers at MCP and PIP joints, assists in hand flexion.

Question 25

Which muscles are part of Layer 3 of the anterior compartment?

Answer 25

Flexor Digitorum Profundus, Flexor Pollicis Longus.

Question 26

What is the origin of Flexor Digitorum Profundus?

Answer 26

Anterior surface of the ulna.

Question 27

Where does Flexor Digitorum Profundus insert?

Answer 27

Base of the distal phalanges of the 2nd to 5th fingers.

Question 28

What is the function of Flexor Digitorum Profundus?

Answer 28

Flexes the 2nd to 5th fingers at MCP and IP joints, assists in hand flexion.

Question 29

What is the origin of Flexor Pollicis Longus?

Answer 29

Anterior surface of the radius.

Question 30

Where does Flexor Pollicis Longus insert?

Answer 30

Base of the distal phalanx of the thumb.

Question 31

What is the function of Flexor Pollicis Longus?

Answer 31

Flexes the thumb at MCP and IP joints, assists in hand flexion.

Question 32

Which muscle is part of Layer 4 of the anterior compartment?

Answer 32

Pronator Quadratus.

Question 33

What is the origin of Pronator Quadratus?

Answer 33

Anterior surface of the ulna.

Question 34

Where does Pronator Quadratus insert?

Answer 34

Anterior surface of the radius.

Question 35

What is the function of Pronator Quadratus?

Answer 35

Pronation of the forearm.

Question 36

Which muscles are part of the superficial layer of the posterior compartment?

Answer 36

Extensor Digitorum, Extensor Digiti Minimi, Extensor Carpi Ulnaris.

Question 37

What is the origin of Extensor Digitorum?

Answer 37

Lateral epicondyle of the humerus.

Question 38

Where does Extensor Digitorum insert?

Answer 38

Base of the middle and distal phalanges of the 2nd to 5th fingers.

Question 39

What is the function of Extensor Digitorum?

Answer 39

Extends the fingers and assists in hand extension.

Question 40

Which muscles are part of the deep layer of the posterior compartment?

Answer 40

Abductor Pollicis Longus, Extensor Pollicis Brevis, Extensor Pollicis Longus, Extensor Indicis.

Question 41

What is the origin of Abductor Pollicis Longus?

Answer 41

Posterior ulna and radius, interosseous membrane.

Question 42

Where does Abductor Pollicis Longus insert?

Answer 42

Base of the 1st metacarpal.

Question 43

What is the function of Abductor Pollicis Longus?

Answer 43

Abducts the thumb.

Question 44

Which muscles are part of the superficial layer of the lateral compartment?

Answer 44

Brachioradialis, Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis.

Question 45

What is the origin of Brachioradialis?

Answer 45

Margin of the humerus.

Question 46

Where does Brachioradialis insert?

Answer 46

Radius above the styloid process.

Question 47

What is the function of Brachioradialis?

Answer 47

Flexes the forearm, stabilizes the elbow.

Question 48

What is the origin of Extensor Carpi Radialis Longus?

Answer 48

Lateral epicondyle of the humerus.

Question 49

Where does Extensor Carpi Radialis Longus insert?

Answer 49

Base of the 2nd metacarpal.

Question 50

What is the function of Extensor Carpi Radialis Longus?

Answer 50

Extends and abducts the hand.

Question 51

What is the origin of Extensor Carpi Radialis Brevis?

Answer 51

Lateral epicondyle of the humerus.

Question 52

Where does Extensor Carpi Radialis Brevis insert?

Answer 52

Base of the 3rd metacarpal.

Question 53

What is the function of Extensor Carpi Radialis Brevis?

Answer 53

Extends and abducts the hand.