Week 8 - The humerus

Question 1

What does the humerus articulate with?

Answer 1

Scapula
Radius
Ulna

Question 2

Where does the humerus articulate with the scapula?

Answer 2

At the glenohumeral joint

Question 3

Where does the humerus articulate with the radius and ulna?

Answer 3

At the elbow joint

Question 4

What does the proximal end of the humerus have?

Answer 4

Head
Surgical neck
Anatomical neck
Greater tubercle
Lesser tubercle

Question 5

What does the spherical head of the humerus articulate with?

Answer 5

The glenoid cavity of the scapula

Question 6

What is the anatomical neck of the humerus formed by?

Answer 6

The groove circumscribing the head and separating it from the greater and lesser tubercles

Question 7

What does the anatomical neck of the humerus indicate the line of?

Answer 7

The glenohumeral joint capsule

Question 8

What is the surgical neck of the humerus?

Answer 8

The narrow part distal to the head and tubercles

Question 9

What indicates the junction of the head and neck with the shaft of the humerus?

Answer 9

The greater and lesser tubercles

Question 10

What do the greater and lesser tubercles provide attachment and leverage for?

Answer 10

To some scapulohumeral muscles

Question 11

Where is the greater tubercle?

Answer 11

At the lateral margin of the humerus

Question 12

Where is the lesser tubercle?

Answer 12

Projects anteriorly from the bone

Question 13

What is the intertubercular sulcus also known as?

Answer 13

The bicipital groove

Question 14

What does the intertubercular sulcus do?

Answer 14

Separates the tubercles and provides protected passage for the slender tendon of the long head of the biceps muscle

Question 15

What are the two prominent features of the shaft of the humerus?

Answer 15

The deltoid tuberosity, laterally

The oblique radial groove, posteriorly

Question 16

What is the deltoid tuberosity for?

Answer 16

Attachment of the deltoid muscle

Question 17

What lies in the radial groove for?

Answer 17

The radial nerve and profunda brachii artery

Question 18

what forms when the inferior end of the shaft widens?

Answer 18

The sharp medial and lateral supraepicondylar ridges

Question 19

Where do the medial and lateral supraepicondlyar ridges end?

Answer 19

Distally in the especially prominent medial epicondyle and lateral epicondyle, providing for muscle attachment

Question 20

What makes up the condyle of the humerus?

Answer 20

Trochlea
Capitilum
Olecranon
Coronoid
Radial fossae

Question 21

What are the two articular surfaces of the condyle?

Answer 21

A lateral capitulum

A medial trochlea

Question 22

What does the lateral capitilum articulate with?

Answer 22

The head of the radius

Question 23

What does the medial trochlea articulate with?

Answer 23

The proximal end of the ulna

Question 24

What occur back to back superior to the trochlea?

Answer 24

Two fassae, which makes the condyle quite thin between the epicondyles

Question 25

What does the coronoid fossa receive during full flexion of the elbow?

Answer 25

The coronoid process of the ulna

Question 26

What does the olecranon fossa accommodate during full extension of the elbow?

Answer 26

The olecranon of the ulna

Question 27

What does the shallower radial fossa accommodate when the forearm is fully flexed?

Answer 27

The edge of the head of the radius