Anatomy Ch. 10
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | epimysium
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| show | perimysium
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| The innermost c.t. layer. It is a delicate, areolar c.t. layer that surrounds and electrically insulates each muscle fiber. Contains reticular protein fibers to help bind together neighboring muscle fibers and to support capillaries near these fibers. | show 🗑
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| A thick, cord-like structure composed of dense regular c.t. Formed by 3 c.t. layers as they merge and extend past muscle fibers. They attach the muscle to bone, skin or another muscle. | show 🗑
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| show | body movement, maintenance of posture, protection and support, storage and movement of materials, and heat production
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| What are the characteristics of skeletal muscles? | show 🗑
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| The skeletal muscle is __ by an extensive network of blood vessels. Blood vessels deliver both oxygen and nutrients to muscle fibers. They remove waste products produced by muscle fibers. | show 🗑
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| show | innervated
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| __ __ extend from the brain and spinal cord to skeletal muscle fibers. Each __ __ has a long extension called an __ (nerve fiber) that branches extensively at its terminal end. | show 🗑
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| Skeletal muscle is classified as __ __ b/c the muscle fibers can be consciously controlled by the nervous system. | show 🗑
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| show | muscle fibers (or myofibers)
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| W/in muscle many muscle fibers are organized into bundles called __. | show 🗑
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| show | myofibrils, myofliaments
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| Myofibril bundles contain two types of myofilaments: | show 🗑
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| A tendon that forms a thin, flattened sheet is called a(n): | show 🗑
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| In a muscle there are concentric layers of connective tissue. From deep to superficial these layers are: | show 🗑
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| show | myosin
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| Myofibrils are made of: | show 🗑
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| show | synaptic knob, motor end plate, and synaptic cleft
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| show | sarcomeres
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| show | caveolae
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| Muscle tissue demonstrates the property of __ when it's done contracting and returns to its resting length. | show 🗑
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| show | voluntary, involuntary, autorhythmic
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| show | sarcolemma
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| show | actin and tropomyosin
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| Single unit cells contract: | show 🗑
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| Multiunit muscle cells contract: | show 🗑
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| show | smooth muscle
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| show | involuntary
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| In smooth muscle cells, thin filaments are attached to: | show 🗑
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| show | posture
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| Cardiac muscle cells are __ like skeletal muscle fibers. | show 🗑
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| During development, many groups of __ fuse to form single skeletal muscle fibers. | show 🗑
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| In a motor unit, a single __ neuron typically controls numerous muscle fibers in a muscle. | show 🗑
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| show | Z
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| The mechanism of contraction in smooth muscle involves a calcium-binding protein called: | show 🗑
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| Voluntary sphincter muscles of the gastrointestinal and urinary tracts can be kept closed or open. | show 🗑
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| show | temperature regulation
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| Muscles contract and pull on the tendons that attach the muscles to the bones. | show 🗑
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| A sacromere is defined as the distance from one __ to the next adjacent __. | show 🗑
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| show | hypertrophy
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| show | the muscle has two tendons of origin
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| When a person blinks they are using their: | show 🗑
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| Which is the "kiss muscle" used for puckering the lips? | show 🗑
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| show | buccinator
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| Contraction of the rectus abdominis results in the rotation of the vertebral column. T or F? | show 🗑
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| Which muscle forms the traditional "six-pack" of a well-toned abdominal wall? | show 🗑
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| Which of the following is not one of the rotator cuff muscles? a. infraspinatus b. subscapularis c. teres minor d. supraspinatus e. teres major | show 🗑
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| What muscle is known as the "swimmer's muscle?" | show 🗑
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| Which is one of the largest muscles in the body and the one most responsible for extending and laterally rotating the thigh? | show 🗑
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| show | d-rectus femoris
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| Which is the longest muscle in the body? | show 🗑
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| show | extend the thigh and flex the leg
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| show | gastrocnemius
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| Location of muscle: attached to bones (usually via tendons) or to subcutaneous layer. | show 🗑
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| Location of muscle: only in heart wall. | show 🗑
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| show | smooth muscle
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| C.T. components: epimysium, perimysium, endomysium. | show 🗑
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| show | cardiac muscle
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| C.T. components: endomysium only. | show 🗑
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| show | skeletal muscle
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| show | cardiac muscle
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| show | smooth muscle
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| show | skeletal muscle
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| Regeneration capacity: limited. | show 🗑
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| Regeneration capacity: extensive. | show 🗑
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| Calcium source: well-developed sarcoplasmic reticulum. | show 🗑
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| show | cardiac muscle
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| show | smooth muscle
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| Contractile unit and Ca++ binding: sacromere; Ca++ binds to troponin. | show 🗑
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| Contractile unit and Ca++ binding: sacromere; Ca++ binds to troponin. | show 🗑
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| show | smooth muscle
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| show | skeletal muscle
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| Stimulation: autorhythmic due to pacemaker w/in heart; spread by gap junctions; nervous control is involuntary; excitatory or inhibitory. | show 🗑
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| Stimulation: Multiunit smooth muscle: regulated by autonomic nervous system; excitatory or inhibitory; no gap junctions. Single-unit smooth muscle: autonomic nervous stimulation is through varicosities spread by gap junctions; other stimuli. | show 🗑
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| show | skeletal muscle
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| Response and primary energy source: Slow: aerobic production of ATP. | show 🗑
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| show | smooth muscle
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| show | t-tubules or transverse tubules
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| show | sarcoplasm
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| Skeltal muscle from superficial to deep consists of: | show 🗑
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| Three concentric layers of c.t.: | show 🗑
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| show | two strands of actin, tropomyosin, troponin
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| show | myosin (heads [crossbridges] and tails)
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| show | sacromeres
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| show | sliding filament theory
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| Striations, short and thick, 1 or 2 nuclei, y branches, intercalated discs, authorhythmic, aerobic, increase # of mitochondria, increase energy usage. | show 🗑
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| show | smooth muscle
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| Building up muscle (not creating cells; creating filaments), creating more "cross-bridges" and creating more myofilaments. | show 🗑
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| show | atrophy
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| Fiber type: "white" appearance, decrease amounts of capillaries/myoglobin, fatigue quickly (sprinters). | show 🗑
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| show | slow (type I)-aerobic
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| show | adducter (adducts body part)
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| Abductor pollicis longus. | show 🗑
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| show | flexor (flexes a joint)
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| Extensor hallucis longus. | show 🗑
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| Orbicularis oris. | show 🗑
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| Semispinalis cervicis. | show 🗑
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| Biceps brachii. | show 🗑
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| show | carpi (wrist)
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| Opponens pollicis. | show 🗑
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| show | gluteal (buttocks)
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| show | femoris (thigh)
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| show | hallucis (great toe)
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| Tibialis anterior. | show 🗑
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| show | posterior or dorsal/dorsi (toward the back of the body)
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| show | superior (closer to the head)
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| Serratus posterior inferior. | show 🗑
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| Flexor digitorum superficialis. | show 🗑
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| show | profundus (deep)
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| show | sternum and clavicle (cleido)
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| Intercostal. | show 🗑
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| show | subscapular fossa
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| show | fibula
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| Zygomaticus major. | show 🗑
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| show | rectus (straight)
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| show | oblique (angled)
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| Orbicularis oculi. | show 🗑
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| show | deltoid (triangular)
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| show | quadratus (rectangular)
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| show | Trapeziius (trapezoid)
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| show | longus (long)
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| show | brevis (short)
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| show | major (large of two muscles)
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| Pectoralis minor. | show 🗑
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| show | maximus (largest)
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| Glutues medius. | show 🗑
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| Gluteus minimus. | show 🗑
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| Biceps femoris. | show 🗑
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| show | triceps (three heads)
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| show | quadriceps (four heads)
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| At either end of individual sections of the sarcoplasmic reticulum are blind sacs called __ __ which are much like the hem of a sleeve. | show 🗑
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| An internal membrane complex that is similar to the smooth endoplasmic reticulum of other cells. | show 🗑
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| Cell wall in muscle cell. | show 🗑
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| show | sarcoplasma
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| show | motor nerve
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| show | motor neuron
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
khinson