Term
| When looking at the arm in anatomical position the head of the ulna is ______ and the head of the radius is_____. |
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Definition
Head of the ulna is distal
head of the radius is proximal |
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Term
| The elbow complex is made up of ___ bones, ____ ligaments, ___ Joints, and ____capsule. |
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Definition
| The elbow complex is made up of 3 bones, 3 ligaments, 2 Joints, and 1 capsule. |
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Term
| On the humerus the trochlea articulates with the trochlear notch of the ulna and the capitulum articulates with the head of the radius this is called _______. |
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Definition
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Term
| The movements of the elbow joint are |
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Definition
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Term
| The articulation of the radius and ulna is known as the __________ Joint. It has a _____________ and a _____________ articulation. |
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Definition
| The articulation of the radius and ulna is known as the radioulnar Joint. It has a Proximal and a distal articulation. |
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Term
| The head of the radius pivots within the radial notch of the ulna forming the ___________ radioulnar joint. |
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Definition
| The head of the radius pivots within the radial notch of the ulna forming the proximal radioulnar joint. |
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Term
| The ulnar notch of the radius rotating around the head of the ulna forms the _______radioulnar joint. |
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Definition
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Term
| T or F The distal and proximal radioulnar joints are considered one joint. |
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Definition
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Term
| The proximal radioulnar joint is a _____ joint. It is ________. It allows for _____ and _____. |
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Definition
Pivot
Uniaxial
Supination and pronation |
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Term
| Measured from neutral or fundamental position the radioulnar joint allows ____ of supination and ____ of pronation. |
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Definition
90 degrees of supination
80 degrees of pronation |
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Term
| when supination and pronation occur which bones move? |
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Definition
| The radius rotates around the ulna. The ulna does not move. |
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Term
| In order for a muscle to supinate or pronate the forearm it must attach on the _____. |
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Definition
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Term
| Carrying angle occurs because _______. |
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Definition
The distal end of the humerus is not level. The carrying angles is the longitudinal axes of the humerus and forearm forming an angle.
The carrying angle tends to be greater in women. 5 degrees in men and 10 to 15 degrees in women.
The angle is quite functional in getting your hand to your mouth. |
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Term
| The capitulum articulates with the _____. |
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Definition
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Term
| What are the three ligaments of the elbow? |
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Definition
Medial collateral ligament
Lateral collateral ligament
annular ligament
anatomy.tv has a great picture of these do a search on elbow joint. |
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Term
| The annular ligament attaches both anteriorly and posteriorly to the radial notch of the ulna. It encompasses the _______ . |
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Definition
| The head of the radius and holds the head of the radius against the ulna in the radial notch.. |
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Term
| Volksmann's ischemic contracture is the result of ischemic necrosis of the forearm muscles caused by trauma to the ______ artery. |
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Definition
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Term
| Nursmaids elbow aka pulled elbow is seen in young children when there is a sudden strong traction force on the child's arm. This results in the radial head subluxing out from under the _______ ________. |
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Definition
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Term
| Supracondylar fractures are one of the most common in _________ |
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Definition
| children and are caused by falling on an outstretched hand. A potential danger of this type of fracture is damage to the brachial artery which could lead to Volksmann's ischemic contracture. |
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Term
| What are the muscles of elbow flexion? |
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Definition
Biceps Brachii
Brachialis
Brachioradialis |
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Term
| What are the muscles of elbow extension? |
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Definition
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Term
| What muscles pronate the elbow/ |
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Definition
Pronator Teres
Pronator quadratus |
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Term
| What muscles supinate the forearm? |
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Definition
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Term
| What two muscles form a force couple to move the forearm from a pronated position to a supinated position? |
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Definition
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Term
| When a muscle has stretched over all of its joints as far as possible it has become ___________. |
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Definition
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Term
| When a muscles has contracted over all of its joints as far as possible it has become ___________. |
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Definition
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Term
| What bony landmarks on the Ulna determine if it is a right or left ulna? |
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Definition
The trochlear notch faces anterior
the radial notch faces laterally
styloid process is on the medial side |
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Term
| There are two mucles of the elbow that cross two joints. what muscles are they? |
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Definition
Biceps Brachii
Triceps Brachii |
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Term
| There are two muscles of the elbow that do not attach to the humerus. What are they? |
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Definition
Biceps Brachii
pronator quadratus |
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Term
| The musculocutaneous nerve from spinal segments C5,C6 innervates what muscles of the elbow? |
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Definition
Brachialis C5, C6
Biceps Brachii C5, C6 |
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Term
The Radial nerve C6, C7, C8, T1 innervates what muscles of the elbow joint?
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Definition
Brachiioradialis C5, C6
Triceps C6, C7, C8
Anconeus C7, C8, T1
Supinator C8, T1
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Term
| The Median nerve C6,C7,C8,T1 innervates what muscles of the elbow? |
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Definition
Pronator Teres C6, C7
Pronator Quadratus C8, T1 |
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Term
| At the distal end of the humerus the trochlea is lower than the capitulum. When the arm is in anatomical position this creates an angle called ________. |
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Definition
| Carrying angle. It tends to be greater in women. Normal is 5 degrees in males and 10 to 15 degrees in females. |
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Term
The elbow flexors are
Brachialis
Birceps brachii
Brachioradialis
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Definition
the elbow extensors are
triceps
anconeus |
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Term
the forearm supinators are:
Biceps brachii muscle
supinator muscle |
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Definition
the forearm pronators are:
Pronator teres
Pronator quadratus |
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Term
There are 8 muscles of the shoulder joint.
2 are innervated by the musculocutaneous nerve
2 are innervated by the Median nerve
4 are innervated by the Radial nerve |
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Definition
Biceps Brachii - Musculocutaneous nerve C5,C6
Brachialis - Musculocutaneous nerve C5, C6
Pronator teres - Median Nerve C6, C7
Pronator Quadratus - Median Nerve C8, T1
Anconeus - Radial nerve C7, C8, T1
supinator - Radial nerve C8, T1
Triceps Brachii - radial nerve C6,C7,C8
Brachioradialis - C5, C6 |
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