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- This joint has more freedom of movement that any other joint in the body.
- This freedom results from the laxity of the joint's articular capsule and the large size of the humeral head compared the small size of the glenoid cavity.
- The shoulder articulation is a multiaxial ball-and-socket joint that allows movements around three axes and permits flexion-extension, abduction-adduction, circumduction, and rotation.
- In circumduction, the distal end of the humerus describes the base of a cone, the apex of which is the head of the humerus
What else can I help you with?
Why does the scapula shoulder blade have broad surfaces?
The broad surfaces of the scapula provide attachment points for muscles that help stabilize and move the shoulder joint. The large surface area also allows for a greater range of motion in the shoulder.
How big can a wasp nest get and what factors contribute to its size?
A wasp nest can grow to be as large as a basketball or even bigger. The size of a wasp nest is influenced by factors such as the species of wasp, the availability of food sources, the climate, and the location of the nest.
Muscle that adducts shoulder and causes extension of the shoulder joint?
The latissimus dorsi muscle is responsible for adducting the shoulder and causing extension of the shoulder joint. It is a large triangular muscle located in the back that helps with various movements of the shoulder and arm.
Why is the shoulder apt to become dislocated?
The ball-and-socket joint is most susceptible to dislocation. Joint dislocation, or luxation (from the Latin luxare, meaning "to put out of joint"), occurs when the there is a drastic movement of two bone ends out of their normal end-to-end position. The most frequently dislocated joint is the shoulder joint. Since the socket is shallow and the joint is loose, allowing for the tremendous amount of mobility, there is also the greatest possibility of dislocation.
What type of joint is your shoulders?
The shoulder joint is a ball-and-socket joint, formed by the head of the upper arm bone (humerus) fitting into a shallow socket within the shoulder blade (scapula). This joint allows for a wide range of motion in multiple directions.
What are the four factor that contribute to the large range of motion at the shoulder?
Ball and socket joint, the Glenoid Labrum deepens the cavaty, few reinforcing ligaments, and thin/loose articular cartilage encloses the joint
Which factors most contribute to footprints being either large or small?
Big feet or small feet.
Why does the scapula shoulder blade have broad surfaces?
The broad surfaces of the scapula provide attachment points for muscles that help stabilize and move the shoulder joint. The large surface area also allows for a greater range of motion in the shoulder.
How well can squirrels see and what factors contribute to their visual acuity?
Squirrels have good vision, with their eyesight being most effective for detecting motion and distinguishing colors. Factors contributing to their visual acuity include their large eyes, high number of cone cells for color vision, and ability to see in low light.
What two factors may contribute to insecticide resistance?
Large populations and previous exposure to environmental residue are two factors which may contribute to insecticide resistance. Strengthened immune systems can result from interactions with previous applications of the insecticide and from mutants within large numbers of same-generation, same-litter insects.
How are winds created and what factors contribute to their formation?
Winds are created by the movement of air from areas of high pressure to areas of low pressure. Factors that contribute to their formation include the uneven heating of the Earth's surface, the rotation of the Earth, and the presence of large bodies of water.
What is a large flat bone on each side of your back below your shoulder?
shoulder bladeAnswerThe Scapula or shoulder blade.
Which joint listed in the table can be easily dislocated or pulled apart?
The shoulder joint is the joint that can be easily dislocated or pulled apart due to its large range of motion and shallow socket.
How is a landslide formed and what are the factors that contribute to its occurrence?
A landslide is formed when a large amount of rock, soil, or debris moves down a slope. Factors that contribute to landslides include heavy rainfall, steep slopes, loose soil, and human activities like deforestation or construction.
What is the name of the large rounded projection that can be felt on the superior lateral surface of the shoulder?
The name of the large rounded protection on the superior lateral surface of the shoulder is the acromion process. It is a bony structure that can be felt on the top of the shoulder blade.
Two large joints in the body?
Hip and Shoulder
What adjectives describe shoulder blades?
Large, square.
