Anatomy Exam 2 Possible Questions And Answers 100% Accurately Solved.

The muscles attached to the Hyoid bone primarily facilitate what? -Chewing -Social Signaling -Talking -Grimacing -None of these - correct answer Talking Muscles are most commonly regarded as? -Receptors -Effectors -Reflectors -Manufactures -Preceptors - correct answer Effectors The movement function of muscle tissue is accomplished by - -Muscles tissue pushing against resistant surfaces such as bone or cartilage -Muscles tissue pulling upon resistant surfaces such as bone or cartilage -Spiraling and twitching to generate movement -Biochemical energetic reactions that result in heat generation -None of these - correct answer Muscles tissue pulling upon resistant surfaces such as bone or cartilage Striated muscle can total up to ___% of the total body weight - -20% -30% -40% -50% -60% - correct answer 40% When the phrase "all or nothing" is used in regard to muscle contraction, it is what that is being referred to? -Individual muscles -Muscle fascicle -Layers of epi or peri mysium -Muscle fiber -Miofibrile - correct answer Muscle fiber The connective tissue wrappings of a muscle and muscle components are often referred to as - -Sheaths -Investments -Myofibrillar coverings -Perimycillar collagen -None of these - correct answer Investments A histological longitudinal section of a collagenous component at an articulation is seen to contain muscle fibers at one of its ends. This structure is a - -Ligament -A meniscus -Tendon -Fibrocartilage pad -None of these - correct answer Tendon True/False Muscles are flexible but are not at all elastic - correct answer False Voluntary muscle is - -Striated muscle -Somatic muscle -Visceral muscle -Smooth muscle -Striated and Somatic muscle - correct answer Striated and Somatic muscle Smooth muscle can be found commonly - A) In close association with striated muscle B) In the walls of tubular organs such as blood vessels and the gut C) Within organs such as the liver and the spleen D) In the walls of the urinary bladder and the walls of the uterus E) B and D - correct answer B) In the walls of tubular organs such as blood vessels and the gut D) In the walls of the urinary bladder and the walls of the uterus Muscles of facial expressions are - A) All sphincter muscles B) Are not attached to tendons C) Are largely a mammalian characteristic D) Have social signaling as one of their most important functions E) C and D - correct answer C) Are largely a mammalian characteristic D) Have social signaling as one of their most important functions Muscles of facial expression - -Are composed of smooth muscle -Are composed of striated muscle -Are important to heat generation system of humans -Include a muscle called the deltoid muscle -Include none of the above - correct answer Are composed of striated muscle Smooth muscle can be identified histologically because - -It is especially smooth and glistens -It contains many branching fibers -It contains special cell membranes called intercalated disks -It has centrally located nuclei -It lacks cross striations - correct answer It lacks cross striations Smooth muscle is _________ involuntary -Entirely -Largely -About 50% -About 20% -All of the above - correct answer Largely Smooth muscle is responsible for - -Local control of blood flow in some vessels -Largely responsible for labor in child birth -A and B above -Controlling the movement of materials in the intestine -A, B, and D - correct answer -A, B, and D -Local control of blood flow in some vessels -Largely responsible for labor in child birth -Controlling the movement of materials in the intestine Cardiac muscle is characterized by - -Branching muscle fibers -Peripherally located nuclei -Intercalated disks -Transversely oriented striations -A, C, and D - correct answer -A, C, and D -Branching muscle fibers -Intercalated disks -Transversely oriented striations The rectus abdominus muscle - -Is segmented -Has fibers running at right angles to those of the transverse abdominus -Functions to compress the abdomen -Is composed of striated voluntary muscle -All of the above - correct answer All of the above The muscle attachment that attaches to the part that moves is called the - -Insertion -Origin -Flexor -Extensor -None of these - correct answer Insertion The body of the muscles that extend the toes are to be found in the - -Toes -Thigh -Leg -Ankle -Knee - correct answer Leg If a muscle is an agonist of another muscle -