Time Span Video Content Audio Content
0:00-0:30 Full screen shot of the humerus during the introduction The Humerus is both the largest bone in the arm and the only one located in the upper arm. Many of the powerful muscles that help move the shoulder and forearm, the elbow, are attached to the Humerus. The Humerus is very essential to a variety of movements of the arm, including throwing, lifting, and even writing.
0:30-1:00 Demonstrate all parts of the humerus bone. There are many parts of the Humerus including the head, greater and lesser tubercles, Anatomical and surgical necks, Intertubercular sulcus, Radial groove, Deltoid tuberosity, medial and lateral supracondylar ridge, Radial fossa, Coronoid Fossa, Olecranon fossa, medial and …show more content…
The head of the humerus forms the ball for the ball- and- socket shoulder joint, with the glenoid cavity of the Scapula as the socket. The roundness of the head allows the humerus to move in a complete circle and rotate around its axis of the shoulder joint.
1:35- 2:00 Demonstrate the Anatomical neck, Greater tubercle and lesser tubercle and the intertubercular sulcus You can see that from the head, the Humerus begins to narrow to form the anatomical neck. Just below the anatomical neck, two small processes, the Greater and lesser tubercles form as attachment points for muscles of the rotator cuff. In between the Greater and Lesser tubercles lye’s the intertubercular sulcus its function is to separate the two tubercles. Once again this is the Anatomical neck below the head, and the greater tubercle, and lesser tubercles and the intertubercular …show more content…
After the Tubercles the humerus begins to narrow again forming the surgical neck before it extends down towards the elbow joint making up the body of the Humerus. (You can fit the surgical neck easily between your thumb and pointer finger.) The surgical neck is the most common fracture of humerus. A fracture in the surgical neck area is most likely damage the axillary nerve and posterior circumflex humeral artery.
2:16- 2:30 Demonstrate the Deltoid Tuberosity and the Radial groove About a 3rd of the way down from the surgical neck and along the body of the Humerus it begans to swell into a small process called the Deltoid Tuberosity. This tuberosity supports the insertion point of the Deltoid muscle which is why it’s a Deltoid Tuberosity. Next to the Deltoid Tuberosity is a shallow groove called the Radial groove that wraps around the body or shaft of the humerus. The radial nerve and deep brachial artery lie within the Radial
0:00-0:30 Full screen shot of the humerus during the introduction The Humerus is both the largest bone in the arm and the only one located in the upper arm. Many of the powerful muscles that help move the shoulder and forearm, the elbow, are attached to the Humerus. The Humerus is very essential to a variety of movements of the arm, including throwing, lifting, and even writing.
0:30-1:00 Demonstrate all parts of the humerus bone. There are many parts of the Humerus including the head, greater and lesser tubercles, Anatomical and surgical necks, Intertubercular sulcus, Radial groove, Deltoid tuberosity, medial and lateral supracondylar ridge, Radial fossa, Coronoid Fossa, Olecranon fossa, medial and …show more content…
The head of the humerus forms the ball for the ball- and- socket shoulder joint, with the glenoid cavity of the Scapula as the socket. The roundness of the head allows the humerus to move in a complete circle and rotate around its axis of the shoulder joint.
1:35- 2:00 Demonstrate the Anatomical neck, Greater tubercle and lesser tubercle and the intertubercular sulcus You can see that from the head, the Humerus begins to narrow to form the anatomical neck. Just below the anatomical neck, two small processes, the Greater and lesser tubercles form as attachment points for muscles of the rotator cuff. In between the Greater and Lesser tubercles lye’s the intertubercular sulcus its function is to separate the two tubercles. Once again this is the Anatomical neck below the head, and the greater tubercle, and lesser tubercles and the intertubercular …show more content…
After the Tubercles the humerus begins to narrow again forming the surgical neck before it extends down towards the elbow joint making up the body of the Humerus. (You can fit the surgical neck easily between your thumb and pointer finger.) The surgical neck is the most common fracture of humerus. A fracture in the surgical neck area is most likely damage the axillary nerve and posterior circumflex humeral artery.
2:16- 2:30 Demonstrate the Deltoid Tuberosity and the Radial groove About a 3rd of the way down from the surgical neck and along the body of the Humerus it begans to swell into a small process called the Deltoid Tuberosity. This tuberosity supports the insertion point of the Deltoid muscle which is why it’s a Deltoid Tuberosity. Next to the Deltoid Tuberosity is a shallow groove called the Radial groove that wraps around the body or shaft of the humerus. The radial nerve and deep brachial artery lie within the Radial