Exam 19: Musculoskeletal System

A) low oxygen demand by the cells.
B) lactic acid buildup.
C) too much oxygen in the body.
D) too little carbon dioxide in the body.
E) failure to convert potential energy into kinetic energy.

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A) their location in the body.
B) the presence or absence of tendons.
C) their ability to move.
D) the length of bones concerned.
E) the type of muscles attached.

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A) zygomatic bones-bridge of the nose
B) mandible-lower jaw
C) maxillae-upper jaw and hard palate
D) temporal-temples
E) frontal-forehead

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A) chondrocytic mediastinum
B) osteoclastic border
C) osteon promoter
D) fontanel
E) growth plate

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A) slow-twitch fibers with many mitochondria and high blood supply.
B) slow-twitch fibers with fewer mitochondria and lower blood supply.
C) fast-twitch fibers with many mitochondria and high blood supply.
D) fast-twitch fibers with fewer mitochondria and lower blood supply.
E) fast-twitch fibers with a reserve of glycogen and fat.

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A) Their training routine should include weight lifting,sprinting,or any other type of activity that requires an explosion of energy in order to increase their fast-twitch fibers.
B) Their training routine should include weight lifting,sprinting,or any other type of activity that requires an explosion of energy in order to increase their slow-twitch fibers.
C) Their training routine should include swimming,biking,jogging,and any other type of activity that requires an explosion of energy in order to increase their fast-twitch fibers.
D) Their training routine should include swimming,biking,jogging,and any other type of activity that produces their energy aerobically in order to increase their slow-twitch fibers.

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A) tibia is to the femur.
B) fibula is to the ulna.
C) fibula is to the tibia.
D) humerus is to the femur.
E) humerus is the radius.

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A) muscle $\rightarrow$ muscle cell $\rightarrow$ myofibril $\rightarrow$ sarcomeres $\rightarrow$ filaments
B) muscle $\rightarrow$ muscle fibers $\rightarrow$ sarcomeres $\rightarrow$ filaments $\rightarrow$ myofibrils
C) muscle $\rightarrow$ sarcomeres $\rightarrow$ myofibrils $\rightarrow$ actin filaments $\rightarrow$ myosin filaments
D) muscle cells $\rightarrow$ myofibrils $\rightarrow$ filaments $\rightarrow$ sarcomeres
E) muscle $\rightarrow$ myofibrils $\rightarrow$ sarcomeres $\rightarrow$ muscle cells $\rightarrow$ filaments

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A) a
B) b
C) c
D) d
E) e

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A) humerus
B) ulna
C) femur
D) coxal
E) tibia

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A) immovable.
B) slightly movable.
C) freely movable.
D) synovial joints.
E) discoidal.

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A) administer a chemical to kill all osteoblasts.
B) leave the periosteum intact to provide nutrients and define the boundary for bone growth.
C) ensure the growth plates are all ossified.
D) remove calcium from the diet.
E) remove the red bone marrow from the bone.

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A) ligaments.
B) tendons.
C) patellas.
D) bursae.
E) menisci.

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A) ribs
B) sternum
C) scapula
D) vertebrae
E) skull

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A) the thin filaments become shorter.
B) the thin filaments become longer.
C) the thick filaments become shorter.
D) the thick filaments become longer.
E) neither of the filaments change length.

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