This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why is the inferior region of the shoulder joint most vulnerable to ... (Read 20 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
on: Feb 28, 2019
Why is the inferior region of the shoulder joint most vulnerable to dislocation?

Question 2

When the triceps brachii muscle contracts, what movements does it produce?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kaillie

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Feb 28, 2019
Answer to Question 1

The anterior, superior, and posterior surfaces of the shoulder joint are reinforced by ligaments, muscles, and tendons, but the inferior capsule is poorly reinforced. As a result, a dislocation caused by an impact or a violent muscle contraction is most likely to occur at this site. Such a dislocation can tear the inferior capsular wall and the glenoid labrum.

Answer to Question 2

The triceps brachii attaches to the olecranon process. Contraction of the triceps brachii muscle causes the ulna to rotate around the distal humerus, causing extension of the forearm.


piesebel

  • Member
  • Posts: 565
Reply 2 on: Feb 28, 2019
Excellent

jackie

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

A star-forming region in the Large Magellanic Cloud. A star-forming region in the Large Magellanic Cloud.
Structure of a generalized synovial joint. Structure of a generalized synovial joint.
Gout of the finger joint. Gout of the finger joint.
Shoulder Stretch by Horizontal Flexion of Arm. Shoulder Stretch by Horizontal Flexion of Arm.
Scapula mobilizing technique: move and lift the scapula by pulling back at the shoulder. Scapula mobilizing technique: move and lift the scapula by pulling back at the shoulder.
Apply direct thumb pressure into points along the upper trapezius from base of neck to shoulder. ... Apply direct thumb pressure into points along the upper trapezius from base of neck to shoulder. ...
Video: Major Elements in Biological Molecules: Lipids

For a complete list of videos, visit our video library