Lecture 5 Anatomy Flashcards
1
Q
Forearm is called?
A
Antebrachium
2
Q
Bony Support for the Forearm?
A
Ulna and Radius
3
Q
Post. Compartment Muscles are innervated by?
A
Radial Nerve
4
Q
Anterior Compartment Muscles are innervated by?
A
Median Nerve
5
Q
-Flexor Carpi Ulnaris -Ulnar Head of Flexor digitorum profundus are the exception and innervated by?
A
Ulnar Nerve
6
Q
Brachioradiallis is innervated by?
A
Radial Nerve
7
Q
Brachioradiallis starts posterior and comes around?
A
Anteriorly
8
Q
Which nerve innervates the majority of the Forearm?
A
Median nerve
9
Q
Brachial Artery divides into which two arteries?
A
Radial Artery (Lateral) Ulnar Artery ( Medial)
10
Q
Ulnar Artery has which arteries that come off and surround it?
A
Common Interosseous Artery Anterior Interosseous Artery Posterior Interossesus Artery
11
Q
The Common Interosseous Branches off the Ulnar Artery?
A
True
12
Q
Posterior Compartment Muscles Consist of what kind of muscles?
A
Extensors ( Supinators)
13
Q
Anterior Compartment Muscles consist of what kind of muscles?
A
Flexors (Pronators)
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.
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.
16
Q
The intermuscular septum connects the radius to the ulna?
A
False, the Interosseous Membrane does!
17
Q
Almost ALL flexor tendons and the median nerve run through the?
A
Flexor Retinaculum
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
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
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
21
Q
Which muscle assists with flexion of the distal part of the 2nd phalanges?
A
Flexor Digitorum Profundus
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
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
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)
25
Does everyone have a Palmaris Longus?
NO, only 60% of people do.
26
Flexor Digitorum Superficialis Attachments and Insertion?
Medial Epicondyle
Proximal Ulna
Ant. Radius
Insert - Sides of 2nd and 5th mid phalanges
27
Flexor Digitorum Profundus Attachments and insertion?
* Ant Ulna
* Interossesous Membrane
* Inserion at 2nd -5th **distal** phalanges.
28
Pronator Teres
* Medial Epicondyle
* Coronoid process
* Insert--\> Mid Radius
29
Superficial Forearm **Extensor** Muscles
* Extensor Carpi Radialis Longus
* Extensor Carpi Radialis Brevis
* Extensor Carpi Ulnaris
* Extensor Digitorum
* Extensor digiti minimi
30
Deep Posterior Forearm Muscles
* Abductor Pollicis Longus
* Extensor Pollicis Brevis
* Extensor Policis Longus
* Extensor Indicis
31
Biceps Brachii and Brachioradialis can cause?
Supination
PA : Lateral Epicondyle
DA: Proximal Radius
32
Two Joint Muscle?
Biceps Brachii and Brachioradialis because both can act as a supinator and flexor.
33
Brachioradialis and Anconeus innervated by?
Innervated by the Radial Nerve
34
Capitulum of Humerus -- \>
Radius
35
Trochela of Humerus--\>
Ulna
36
Ulna has what two processes?
Coronoid Process and Olecranon Process
37
Radial has what Tuberosity?
Radial Tuberosity
38
Bursa is in what kind of joints?
Highly mobile joints
39
40
Flexor Muscles attach to the ------ epicondyle of the humerus?
MEDIAL
41
Label Two Flexor Muscles. List their Innervations and their Arterial Supply. Are these Superficial, Intermediate, or Deep Muscles of the Anterior Forearm?
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
Label This Muscle. List the Innervation, Arterial Supply, and is it Superficial, Deep, Intermediate muscle of the Anterior Forearm?
Palmaris Longus innervated by Median Nerve
Superficial Muscles of the Forearm
Both Supplied by Ulnar Artery
\* Anterior Interoseous Artery\*
43
What muscle is this? Is this a Superficial, Intermediate, or Deep Muscle of the Forearm? What are the actions? Innervations? and Arterial Supply?
Flexor Digitorum Superficialis. Intermediate Forearm Muscle.
## Footnote
Very extensive, broad muscle. Inserts on middle phalanx (2-5)
Median Nerve
Ulnar Artery
44
What muscle is this? Is this a Superficial, Intermediate, or Deep Muscle of the Forearm? What are the actions? Innervations? and Arterial Supply?
Flexor Pollicis Longus. Deep Muscle of the Anterior Forearm. Median Nerve. Anterior Interosoeous Artery ( Ulnar Artery). Goes only to the Thumb! ( 1st)
45
Superficial Muscle of the Forearm. Median Nerve. Ulnar Artery.
46
What muscle allows to do this? Which layer of the Anterior Forearm? The insertion? Arterial Supply? and Innervation?
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
What muscle allows to do this? Which layer of the Anterior Forearm? The insertion? Arterial Supply? and Innervation?
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
In Pronating and Supinating Muscles of the Anterior Forearm, what allows the movement?
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
What Muscle is this? Insertion? What Compartment of the Forearm? Arterial Supply? Innervation?
Pronator teres
Anterior Compartment of the Forearm Muscle
(Medial Epicondyle , Coronoid Process)
(insert. Mid radius)
Median Nerve
Ulnar Artery--\> Anterior Recurrent Ulnar Artery.
50
What Muscle is this? Insertion? What Compartment of the Forearm? Arterial Supply? Innervation?
Pronator quadratus, Anterior Compartment.
(Distal ulna)
(insert. Distal radius)
Anterior Interoseous Artery
Median Nerve
51
Tell me about the answer. Which layer of the Forearm? Compartment?
Anterior Comparmtent. Intermediate.
52
Extensor Retiuculm. What nerve runs under? What syndrome pertains to this?
It's in the POSTERIOR compartment of the Forearm. It has NO nerves running under. It pertains to CARPEL TUNNEL syndrome.
53
What are antagonist to the Flexor Carpi Radialis?
Extensor Carpi Radiallis Longus and Extensor Caroi Radialis Brevis.
54
Anatomical Snuff Box? What can be done here?
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
Artery and Nerve Supply. Location. and Origin.
Extensor Carpi Radialis Longus. Comes from the Later Epicondyle of the Humerus. Radial Artery and Radial Nerve.
56
What Muscle is this? Origin? Arterial Supply? Nerve?
Extensor Digitorum. Goes through 2-5 phalanges. Radial Nerve. Interosesous Artery and recurrent. Lateral Epicondyle. Posterior Compartment.
57
What muscle is this? Info about this.
Extensor Digiti Minimi. Interosseous recurrent artery. Radial Nerve. Extensor expansion of 5th digit. Lateral Epicondyle.
58
What muscle is this? Compartment? Layer? Attachment. Artery.Nerve.
Extensor Indicis. Posterior Compartment.Deep. Radial Nerve. Posterior Interoseous Artery.
59
Brevis Sandwich, explain this. Label. Compartment? Nerve. Artery. Layer. Which phalange is this acting on?
Deep. Posterior Compartment. Radial Nerve. Thumb. Radial Nerve. Posterior Interoseus Artery.
60
61
Posterior Compartment. Supinators. What muscles?
Supinator.
Biceps Brachii
Brachioradialis
62
This muscle attaches to?
Biceps attaches to the radial tuberosity
All these muscles have the ability to Supinate.
63
64
Whats number 4. What does it do?
Annular Ligament keeps the radius in place.
65
