Biology: Anatomy Chapter 10.7 mod.

all fibers of pectoralis major muscle converge on the lateral edge of the _______________.

the anterior axial muscle that crosses the glenohumeral joints is the pectoralis major muscle.

the posterior axial muscle that crosses the glenohumeral joint is the ___________________________.

the deltoid muscle fibers are seperated into __________________.

the middle fibers of the deltoid muscle __________________.

the external intercostals elevate the rib cage during ____________.

the origin of the external obliques includes ribs ________________.

the infraspinatus inserts on the ____________ of the humerus.

the infraspinatus muscle is included in the __________ muscles.

the actions of the internal intercostals are most important during __________.

the actions of the internal obliques include ____________________.

the latissimus dorsi inserts _____________________.

one of the actions of the latissimus dorsi muscle is to _____________________.

which joint is considered the most flexible joint in the body?

muscles of the shoulder can be divided into groups based on __________.

which of the following groups of muscles are not muscles of the shoulder?

of the nine muscles that cross the shoulder joint and insert on the humerus, which muscle is considedered to be a prime mover?

which of the following muscles is not part of the shoulder?

the pectoralis muscle can be divided into groups of fiers superior, or __________, and inferior, or __________.

the key actions of the pectoralis major muscles are __________.

the pectoralis minor muscle is innervated by the __________.

which muscle is not part of the rotator cuff?

the angle of which muscle prevents the humeral head from sliding upward out of the joint as the arm is raised?

downward dislocation of the humerus from the glenohumeral joint when carrying weight is prevented by the __________.

the rotator cuff is a term used to describe the group of muscles and tendons that stabilize and reinforce the __________.

all the tendons of the rotator cuff muscles combine at which location?

the origin of the serratus anterior includes __________ ribs.

the subscapularis muscle inserts on the __________.

the insertion of the supraspinatus muscle is on the __________.

the teres major adducts the arm but does not _______________ the arm

the insertion of the teres minor is on the __________.

the trapezius muscle may be separated into all of the following groups, except __________.

all fibers of the trapezius muscle are innervated by the _____________.

identify the levator ani muscle

what is the name and origin of the musclel at A?

which msucle is innervated by the S3 nerve, S4nerve, and the inferior rectal nerve (a branch of the pudendal nerve)? The levator ani muscles are innervated by several nerves including the pudendal, while the other muscles indicated are innervated by the pudendal nerve alone.

which muscle inserts on the greater tubercle of the humerus? the infraspinatus typically originates on the infraspinous fossa of the scapula and inserts into the greater tubercle of the humerus posterior to the insertion of supraspinatus.

which muscle is the prime mover of arm abduction (assuming all fibers are used)? the deltoid muscle has three sets of fibers. if all three are activated, the arm is abducted at the shoulder.

which muscle is known as the "boxer's muscle" for its ability to move the arm horizontally, as in throwning a punch? the serratus anterior can be used to violentally pull the scapula laterally and thus pull the shoulder forward, adding strength to a horizontal punch.

which of the following muscles is known on this image but its NOT indicated with a letter? the deltoid, located in the upper right hand of the image, originates at the acromion of the scapula and inserts into the deltoid tuberosity of the humerus.

which muscle is a prime mover of arm abduction? this muscle originates along the spine and ribs and inserts into the humerus. it is a powerful actor during chin-ups

which of the following is not a muscle primarily involved in the breathing process?

the supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action?

the abnormal protrusion of the small intestine through a weak point in the muscle of the abdominal wall is called a ____________.

the ________ is a synergist of the latissimus dorsi; it extends, medially rotates, and adducts the humerus.

which of the following is INCORRECTLY paired? the pectoralis major adductions the arm.

which of the following is NOT a rotator cuff muscle? teres major is not one of the four rotator cuff muscles. their main function is to reinforce the capsula of the shoulder and rotate the humerus in the glenoid cavity.