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anatomy chapter 6

QuestionAnswer
Which of the following statements about the muscles of the thorax is incorrect? When the diaphragm contracts, it decreases the volume of the thoracic cavity and expels air from the lungs.
Muscles that move the upper arm originate on the: clavicle and scapula.
Moving from superficial to deep, the connective tissue components would be: epimysium, perimysium, endomysium.
Which of the following statements is incorrect? All of the above are correct.
Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the: perimysium.
The sternocleidomastoid muscle is an example of a muscle named for its: points of attachment.
The covering of individual muscle fibers is the: endomysium.
A muscle that assists with mastication is the: masseter.
The prime mover can also be called the: agonist.
Muscles located on the lower leg move the: foot
Muscles may be named according to: function. direction of fibers. points of attachment. Correct!
The muscle that allows the thumb to be drawn across the palm to touch the tip of any finger is the: opponens pollicis.
The action of the brachialis muscle is to _____ the forearm. flex
Another name for a skeletal muscle cell is a(n): muscle fiber.
The teres major and teres minor muscles move the: arm.
The soleus muscle is an example of a _____ muscle. pennate
The latissimus dorsi muscle is an example of a _____ muscle. spiral
Muscles that contract at the same time as the prime mover are called: synergists. fixators.
When an athlete injures a muscle of the hamstring group, the injury is on the: posterior thigh.
The posterior arm muscle that extends the forearm is the: triceps brachii.
The Achilles tendon is common to both the gastrocnemius and the soleus. True
There are more than 600 muscles in the body. True
The most common type of lever in the body is a _____-class lever. third
Skeletal muscles constitute approximately ____ of our body weight. 50%
Which of the following is not a muscle that moves the thigh? Sacrospinalis
The muscle that extends and adducts the arm is the: latissimus dorsi.
Which of the following muscles does not move the upper arm? Trapezius
The pectoralis major muscle is an example of a _____ muscle. convergent
The origin of a muscle is on the femur, and the insertion is on the tibia. When it contracts, it bends the knee. Its fibers run parallel to the body. Which of the following terms might be part of its name? Flexor
Which of the following statements about the muscles of the head is incorrect? The splenius capitis muscle is sometimes called the prayer muscle because it causes the head to bow.
A muscle is attached to the femur and tibia. Its function or action is to bend the knee. When it contracts, it is acting as the: prime mover.
Which of the following is not a muscle that moves the foot? Sartorius
The muscle that flexes the semipronated or semisupinated forearm is the: brachioradialis.
Which of the following is not a group of pennate muscles? Tripennate
In pushing (pressing) a weight from shoulder height to above the head, which of the following muscles is least utilized? Biceps brachii
The muscle that raises or lowers the shoulders or shrugs them is the: trapezius
Which of the following is not a muscle of the quadriceps femoris group? Biceps femoris
Which of the following is not a posterior muscle that acts on the shoulder girdle? Pectoralis minor
Another name for a sphincter muscle is a _____ muscle. circular
Which of the following body systems assists the muscles in maintaining posture? Digestive Endocrine Excre
Created by: dljsapp
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