Exam 3 Anatomy and Physiology 11/19/2007 Use Scantron for Questions 1 40

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1 Exam 3 Anatomy and Physiology 11/19/2007 Use Scantron for Questions 1 40 NAME 1) Lateral epicondylitis is commonly known as: A) softball elbow. B) a dislocation. C) tennis elbow. D) water on the knee. E) shin splints. 2) A ballerina standing on her toes is an example of: A) plantar flexion. B) eversion. C) dorsiflexion. D) inversion. E) hyperextension. 3) The joint between the trapezium and the first metacarpal is: A) uniaxial. B) a modified hinge joint. C) a saddle joint. D) a condyloid joint. E) gliding joint. 4) The form of arthritis that is believed to be autoimmune in nature is: A) osteoarthritis. B) rheumatoid arthritis. C) gouty arthritis. D) spondylitis. E) none of the above. 5) The disease characterized by uric acid deposits in the soft tissues of joints is called: A) osteoarthritis. B) rheumatoid arthritis. C) spondylitis. D) gouty arthritis or gout. 6) A rim of fibrocartilage that deepens certain joints is called a: A) meniscus. B) labrum. C) bursa. D) cruciate. E) capsule. 7) The S.I.T.S. muscles are associated with the joint. A) jaw. B) hip. C) shoulder. D) elbow. E) ankle. 8) The deltoid ligament is associated with the: A) jaw. B) hip. C) shoulder D) elbow. E) ankle. 9) The head of myosin is actually an enzyme called: A) acetylcholinesterase. B) myosin esterase. C) myosin ATPase. D) troponin. E) strokinase 10) Intermediate muscle fibers are best described as: A) slow fibers that are fatigue resistant. B) fast fibers that are fatigue resistant. C) slow fibers that fatigue easily. D) fast fibers that fatigue easily. E) fibers that can t make up their mind. 11) The primary fuel source for resting muscle is/are: A) fatty acids. B) amino acids. C) glucose. D) creatine. E) Duff beer. 12) The detachment of a myosin cross-bridge from actin is directly triggered by: calcium ions. B) synthesis of ATP. C) attachment of a new ATP to myosin head. D) Ach esterase. E) tropomyosinase. 13) The A bands of muscle myofibrils represent: A) actin filaments. B) myosin filaments. C) intermediate filaments. D) A & B. 14) A contraction in which a muscle is not allowed to shorten in length is called: A) isometric. B) isotonic. C) tonic. D) tetany. E) none of the above. 15) The rheumatic disease named after a town in Connecticut is: A) Hartford s Disease. B) Danbury Disease. C) Bridgeport Syndrome. D) Lyme Disease. E) Becker s Dystrophy. 16) The primary fuel source for exercising muscle is/are: A) fatty acids. B) amino acids. C) glucose. D) lactic acid. E) ethanol (the more, the merrier!). 17) The function of myoglobin is to: A) bind oxygen. B) bind calcium. C) cover the myosin binding site of actin. D) serve as a backup ATP source. E) maintain blood flow to muscle. 18) Intercalated discs are found in: A) striated muscle only. B) smooth muscle only. C) at the ends of sarcomeres. D) cardiac muscle. E) A & C. 19) An epiphyseal plate is an example of a/an: A) cartilaginous joint. B) suture. C) fibrous joint. D) synovial joint. E) none of the above. It's not a joint! 20) The pubic symphysis is an example of a/an: A) semi-moveable joint. B) fibrous joint. C) cartilaginous joint. D) A & B. E) A & C. 21) Duchenne's muscular dystrophy is due to: A) an autoimmune attack on Ach receptors. B) an autoimmune attack on motor neurons. C) a lack of dystrophin. D) hyperplasia of muscles. E) over-production of dystrophin. Continue Using Scantron!!!!!

2 Matching: Match the bone/structure combination with the type of joint. 22) atlas-axis A) ball and socket 23) head of femur - acetabulum B) pivot 24) trochlea - ulna C) gliding 25) carpal - carpal D) condyloid/ellipsoid 26) metacarpal - phalanx (knuckles) E) hinge 27) head of radius ulna 28) distal tibia -- talus Matching: Match the muscle subtype with its characteristic 29) anaerobic ATP production primarily A) red fibers 30) fast oxidative fibers B) white fibers 31) have fast myosin ATPase C) intermediate fibers 32) have slow myosin ATPase D) red & intermediate 33) highest resistance to fatigue (A,B,or C) E) white & intermediate Identify the parts of the sarcomere by matching the structure with its name or description. 34) I Band 35) Z-line or disc 36) A Band 37) H-zone 38) stays the same during contraction. 39) M-line goes down the middle of this. 40) Primarily made up of actin filaments End of Scantron Portion!!!

3 Dr. Phil These In: (1-2 pts each) The anterior cruciate prevents. The anterior cruciate is named after and. Moving the hand into a palm-up position is called. Kyphosis is an exaggerated curvature A myofibril is made of a series of identical subunits called. A bundle of muscle cells is called a. The bundle is surrounded by connective tissue called the Which two joints have a labrum? &. Based on structure, there are three types of joints:,, and. A tendon sheath is a modified. The function of a tendon sheath is to Three major functions of muscle are. The sella turcica is part of the bone. Like the frontal and maxilla this bone has a/an. muscle is striated and involuntary. When an athlete trains for a sport that requires endurance, what specific physiological or anatomical changes take place in his or her key muscles that help to increase endurance? (List 4 specific changes) (4 pts)

4 Define the following terms: (2 pts each) Motor unit Abduction Lactic acid Sprain Contrast the Knee and Jaw joints in terms of which bone structures articulate with one another, the key associated structures, and the movements allowed at each joint. (15 pts) Knee Jaw Articulating structures: Associated structures: Movements allowed:

5 ------Fill-in-Essay---- (12 pts) A motor neuron releases the neurotransmitter called into the cleft of the neuromuscular junction. This neurotransmitter binds to on the endplate membrane (sarcolemma) and generates an endplate potential, which then generates a/an potential. This impulse travels along the sarcolemma and is transmitted into the cell through the. This activates the release of ions from the reticulum. These ions bind to the protein, which now alters its configuration and moves a protein called away from the binding site on. Now that the binding site is exposed, the may bind to it and undergo a stroke. Answer 3 of the following 4 questions.(4 pts each) 1) How does the patella modify movement at the knee joint? What is the advantage of having a patella? 2) What is polydactyly? Why is it more common in the Amish or populations on small islands? 3) What two pairs of bones contribute to the hard palate? What is the function of the hard palate? 4) What is creatine phosphate? When is it produced and when is it used?