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 49 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
Wow, this really help

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

The pineal gland is a part of the thalamus region of the brain. It secretes melatonin. The pineal gland is a part of the thalamus region of the brain. It secretes melatonin.
Range of Motion of the Hip Joint, Position of the Leg for Full External Rotation Range of Motion of the Hip Joint, Position of the Leg for Full External Rotation
Strength of Knee Joint Strength of Knee Joint
The relative proportions of body region representation in the motor cortex (anterior to the central The relative proportions of body region representation in the motor cortex (anterior to the central
Stretching the shoulder muscles with arm in horizontal flexion. Stretching the shoulder muscles with arm in horizontal flexion.
Structure of a Joint Structure of a Joint
Video: Contraction and Relaxation Animation

For a complete list of videos, visit our video library