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Anatomy - Block 1 > Lecture 5 Anatomy > Flashcards

Lecture 5 Anatomy Flashcards

1
Q

Forearm is called?

A

Antebrachium

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2
Q

Bony Support for the Forearm?

A

Ulna and Radius

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3
Q

Post. Compartment Muscles are innervated by?

A

Radial Nerve

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4
Q

Anterior Compartment Muscles are innervated by?

A

Median Nerve

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5
Q

-Flexor Carpi Ulnaris -Ulnar Head of Flexor digitorum profundus are the exception and innervated by?

A

Ulnar Nerve

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6
Q

Brachioradiallis is innervated by?

A

Radial Nerve

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7
Q

Brachioradiallis starts posterior and comes around?

A

Anteriorly

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8
Q

Which nerve innervates the majority of the Forearm?

A

Median nerve

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9
Q

Brachial Artery divides into which two arteries?

A

Radial Artery (Lateral) Ulnar Artery ( Medial)

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10
Q

Ulnar Artery has which arteries that come off and surround it?

A

Common Interosseous Artery Anterior Interosseous Artery Posterior Interossesus Artery

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11
Q

The Common Interosseous Branches off the Ulnar Artery?

A

True

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12
Q

Posterior Compartment Muscles Consist of what kind of muscles?

A

Extensors ( Supinators)

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13
Q

Anterior Compartment Muscles consist of what kind of muscles?

A

Flexors (Pronators)

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14
Q

Flexors Innervation? Arterial Supply? Location? Attachment?

A
  • Flexors are muscles that flex the wrist and/or the finger joints.
  • Median Nerve (For Most)
    • Exception For Flexor Carpi Ulnaris
    • Ulnar Head of Flexor Digitorum Profundus Innervated by Ulnar Nerve
  • Arterial Supply Ulnar Artery and Radial Artery
    • Anterior Interosseous Artery
  • Anterior Compartment Attach to the MEDIAL epicondyle of the humerus
  • Distally they attach to the carpal bones, metacarpals and phalanges.
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15
Q

Extensors Innervation? Arterial Supply? Location?

A
  • Extensors are muscles that extend the wrist and/or the fingers.
  • Radial Nerve
  • Arterial Supply: Posterior Interosseous Artery
  • Posterior Compartment
    • Proximally, they attach to either the lateral epicondyle, ulna and/or radius.
    • Distally, they attach to the carpal bones, metacarpals and phalanges.
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16
Q

The intermuscular septum connects the radius to the ulna?

A

False, the Interosseous Membrane does!

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17
Q

Almost ALL flexor tendons and the median nerve run through the?

A

Flexor Retinaculum

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18
Q

Superficial Anterior Forearm Muscles

A
  • Pronator Teres- Median Nerve
  • Flexor Carpi Radialis- Median Nerve
  • Palmaris Longus- Median Nerve
  • Flexor Carpi Ulnaris- Ulnar Nerve
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19
Q

Intermediate Anterior Forearm Muscle

A
  • Flexor Digitorum Superficialis
  • Only goes to the sides of 2-5th MID phalanges
  • Median Nerve Innervation
  • Medial Epicondyle
  • Proximal Ulna
  • Ant Radius
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20
Q

Deep Anterior Forearm Muscles

A

Flexor Digitorum Profundus

  • Medial Part : Ulnar Nerve
  • Lateral Part: Median Nerve
  • Ant. Ulna, Interosseus Membrane
  • Insert. 2nd-5th Distal Phlanges

Flexor Pollicis Longus ( Median Nerve)

  • Distal radius and Interosseous membrane
  • Insert. base of distal phalanx of thumbs

Pronator Quadratus ( Median Nerve)

  • Distal Ulna
  • Insert. Distal Radius
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21
Q

Which muscle assists with flexion of the distal part of the 2nd phalanges?

A

Flexor Digitorum Profundus

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22
Q

All Flexor Muscles in the Anterior Arm

A
  • Flexor Carpi Radialis
  • Palmaris Longus
  • Flexor Carpi Ulnaris
  • Flexor Digitorum Superficialis
  • Flexor Pollicis Longus
  • Flexor Digitorum Profundus
  • –all innervated by Median Nerve— except Flexor Carpi Ulnaris & Flexor Digitorum Profundus
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23
Q

Which muscle is the most medial on the anterior forearm?

  • A. Pronator Teres
  • B. Brachioradialis
  • C. Flexor Carpi Ulnaris
  • D. Palmaris Longus
A

Flexor Carpi Ulnaris

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24
Q

Flexor carpi radialis (insert ?) Palmaris longus (insert ?) Flexor carpi ulnaris (insert ?)

A

Flexor carpi radialis (insert. base 2nd and 3rd MC)

Palmaris longus (insert. Palmar aponeurosis)

Flexor carpi ulnaris (insert. Pisiform, hamate, 5th MC)

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25
Q

Does everyone have a Palmaris Longus?

A

NO, only 60% of people do.

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26
Q

Flexor Digitorum Superficialis Attachments and Insertion?

A

Medial Epicondyle

Proximal Ulna

Ant. Radius

Insert - Sides of 2nd and 5th mid phalanges

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27
Q

Flexor Digitorum Profundus Attachments and insertion?

A
  • Ant Ulna
  • Interossesous Membrane
  • Inserion at 2nd -5th distal phalanges.
28
Q

Pronator Teres

A
  • Medial Epicondyle
  • Coronoid process
  • Insert–> Mid Radius
29
Q

Superficial Forearm Extensor Muscles

A
  • Extensor Carpi Radialis Longus
  • Extensor Carpi Radialis Brevis
  • Extensor Carpi Ulnaris
  • Extensor Digitorum
  • Extensor digiti minimi
30
Q

Deep Posterior Forearm Muscles

A
  • Abductor Pollicis Longus
  • Extensor Pollicis Brevis
  • Extensor Policis Longus
  • Extensor Indicis
31
Q

Biceps Brachii and Brachioradialis can cause?

A

Supination

PA : Lateral Epicondyle

DA: Proximal Radius

32
Q

Two Joint Muscle?

A

Biceps Brachii and Brachioradialis because both can act as a supinator and flexor.

33
Q

Brachioradialis and Anconeus innervated by?

A

Innervated by the Radial Nerve

34
Q

Capitulum of Humerus – >

35
Q

Trochela of Humerus–>

36
Q

Ulna has what two processes?

A

Coronoid Process and Olecranon Process

37
Q

Radial has what Tuberosity?

A

Radial Tuberosity

38
Q

Bursa is in what kind of joints?

A

Highly mobile joints

40
Q

Flexor Muscles attach to the —— epicondyle of the humerus?

41
Q

Label Two Flexor Muscles. List their Innervations and their Arterial Supply. Are these Superficial, Intermediate, or Deep Muscles of the Anterior Forearm?

A

Flexor Carpi Radiallis innervated by Median Nerve

Flexor Carpi Ulnaris innervated by Ulnar Nerve

Superficial Muscles of the Forearm

Both Supplied by Ulnar Artery

* Anterior Interoseous Artery*

42
Q

Label This Muscle. List the Innervation, Arterial Supply, and is it Superficial, Deep, Intermediate muscle of the Anterior Forearm?

A

Palmaris Longus innervated by Median Nerve

Superficial Muscles of the Forearm

Both Supplied by Ulnar Artery

* Anterior Interoseous Artery*

43
Q

What muscle is this? Is this a Superficial, Intermediate, or Deep Muscle of the Forearm? What are the actions? Innervations? and Arterial Supply?

A

Flexor Digitorum Superficialis. Intermediate Forearm Muscle.

Very extensive, broad muscle. Inserts on middle phalanx (2-5)

Median Nerve

Ulnar Artery

44
Q

What muscle is this? Is this a Superficial, Intermediate, or Deep Muscle of the Forearm? What are the actions? Innervations? and Arterial Supply?

A

Flexor Pollicis Longus. Deep Muscle of the Anterior Forearm. Median Nerve. Anterior Interosoeous Artery ( Ulnar Artery). Goes only to the Thumb! ( 1st)

45
Q
A

Superficial Muscle of the Forearm. Median Nerve. Ulnar Artery.

46
Q

What muscle allows to do this? Which layer of the Anterior Forearm? The insertion? Arterial Supply? and Innervation?

A

Flexor Digitorium Profundus. Deep Muscle of the Forearm. Insertion is from the 2- 5th DISTAL phalanges. Ulnar Artery aka Anterior Interoseous Artery. Median Nerve.

47
Q

What muscle allows to do this? Which layer of the Anterior Forearm? The insertion? Arterial Supply? and Innervation?

A

Flexor Digitorium Profundus. Deep Muscle of the Forearm. Insertion is from the 2- 5th DISTAL phalanges. Ulnar Artery aka Anterior Interoseous Artery. Median Nerve.

48
Q

In Pronating and Supinating Muscles of the Anterior Forearm, what allows the movement?

A

ALL movement is on the radius bc ulna does NOT move.

Thus more connection between ulna and humerus > than the connection between radius and humerus.

49
Q

What Muscle is this? Insertion? What Compartment of the Forearm? Arterial Supply? Innervation?

A

Pronator teres

Anterior Compartment of the Forearm Muscle

(Medial Epicondyle , Coronoid Process)

(insert. Mid radius)

Median Nerve

Ulnar Artery–> Anterior Recurrent Ulnar Artery.

50
Q

What Muscle is this? Insertion? What Compartment of the Forearm? Arterial Supply? Innervation?

A

Pronator quadratus, Anterior Compartment.

(Distal ulna)

(insert. Distal radius)

Anterior Interoseous Artery

Median Nerve

51
Q

Tell me about the answer. Which layer of the Forearm? Compartment?

A

Anterior Comparmtent. Intermediate.

52
Q

Extensor Retiuculm. What nerve runs under? What syndrome pertains to this?

A

It’s in the POSTERIOR compartment of the Forearm. It has NO nerves running under. It pertains to CARPEL TUNNEL syndrome.

53
Q

What are antagonist to the Flexor Carpi Radialis?

A

Extensor Carpi Radiallis Longus and Extensor Caroi Radialis Brevis.

54
Q

Anatomical Snuff Box? What can be done here?

A

Consists of the Brevis Sandwich. Involves the Abductor Pollicis Longus Muscle, Extensor Pollicis Brevis Muscle, Extensor Pollicis Longus Muscle. Radial Artery pulse can be felt!

55
Q

Artery and Nerve Supply. Location. and Origin.

A

Extensor Carpi Radialis Longus. Comes from the Later Epicondyle of the Humerus. Radial Artery and Radial Nerve.

56
Q

What Muscle is this? Origin? Arterial Supply? Nerve?

A

Extensor Digitorum. Goes through 2-5 phalanges. Radial Nerve. Interosesous Artery and recurrent. Lateral Epicondyle. Posterior Compartment.

57
Q

What muscle is this? Info about this.

A

Extensor Digiti Minimi. Interosseous recurrent artery. Radial Nerve. Extensor expansion of 5th digit. Lateral Epicondyle.

58
Q

What muscle is this? Compartment? Layer? Attachment. Artery.Nerve.

A

Extensor Indicis. Posterior Compartment.Deep. Radial Nerve. Posterior Interoseous Artery.

59
Q

Brevis Sandwich, explain this. Label. Compartment? Nerve. Artery. Layer. Which phalange is this acting on?

A

Deep. Posterior Compartment. Radial Nerve. Thumb. Radial Nerve. Posterior Interoseus Artery.

61
Q

Posterior Compartment. Supinators. What muscles?

A

Supinator.

Biceps Brachii

Brachioradialis

62
Q

This muscle attaches to?

A

Biceps attaches to the radial tuberosity

All these muscles have the ability to Supinate.

64
Q

Whats number 4. What does it do?

A

Annular Ligament keeps the radius in place.

Anatomy - Block 1 (12 decks)

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