Humerus Anatomy and Functions

The video tutorial provides a detailed walkthrough of the humerus, starting from the head and moving downwards. It covers the anatomical and surgical necks, greater and lesser tubercles, and the intertubercular sulcus. The deltoid tuberosity and radial groove are explained, highlighting their significance in muscle attachment and nerve passage. The tutorial also describes the condyles, capitulum, trochlea, and associated fossae, as well as the medial and lateral epicondyles. Finally, the olecranon fossa is introduced, completing the overview of the humerus.

What part of the humerus articulates with the glenoid cavity of the scapula?

• Greater tubercle

• Surgical neck

• Head

• Anatomical neck

Which structure is located between the greater and lesser tubercles of the humerus?

• Radial groove

• Deltoid tuberosity

• Olecranon fossa

• Intertubercular sulcus

Where does the deltoid muscle attach on the humerus?

• Radial groove

• Trochlea

• Capitulum

• Deltoid tuberosity

What is the function of the radial groove on the humerus?

• Attachment for the deltoid muscle

• Support for the humeral head

• Passage for the radial nerve

• Articulation with the ulna

Which condyle of the humerus articulates with the radius?

• Trochlea

• Capitulum

• Medial epicondyle

• Lateral epicondyle

What is located above the trochlea on the humerus?

• Deltoid tuberosity

• Coronoid fossa

• Radial fossa

• Olecranon fossa

Which epicondyle is located towards the head of the humerus?

• Lateral epicondyle

• Capitulum

• Trochlea

• Medial epicondyle

What is the name of the fossa located on the posterior side of the humerus?

• Coronoid fossa

• Radial fossa

• Intertubercular sulcus

• Olecranon fossa