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PHA1500 A Structure and Function of the Human Body Module 03 Quiz The Muscular and Nervous Systems Question 1 What is released at a synapse between two neurons? Selected Answer: Neurotransmitter Answers: Hormones Neurotransmitter Calcium Electrical charge Question 2 Which neurons carry information from the central nervous system to the target gland, organ, or muscle? Answers: Afferent neurons Efferent neurons Interneurons Sensory neurons Question 3 Which type of muscle is found within internal organs such as the stomach, small intestine, bladder, and uterus within women? Answers: Striated muscle Smooth muscle Skeletal muscle Cardiac muscle Question 4 Which statement is true regarding muscle contraction? Answers: The T-Tubules help transmit the action potential deep into the muscle cell stimulating the release of calcium. The thick filament needs ATP to bind to the thin filament. The axon terminal of the nerve cells comes into direct contact with the muscle cell. Muscle cells can contract with the use of calcium. Question 5 What begins the process of muscle contraction? Answers: Nerve impulse ATP Sodium Calcium Question 6 ATP is needed in muscle contraction for what process? Answers: For the thick filament and thin filament to bind For calcium to be released into the cytoplasm of the cell For the cross-bridge to occur For the release of the thick filament from the thin filament Question 7 What is true of the parasympathetic nervous system stimulation? Answers: It will increase the heart rate. It will dilate the pupils of the eye. It has a calming effect on the body. It will decrease the blood flow to and activity/function of the digestive system. Question 8 Which portion of the brain contains nuclei centers that control and regulate breathing, blood pressure, and heart rate? Answers: Cerebellum Cerebrum Brain stem Diencephalon Question 9 What is the main function of the neuroglia cells? Answers: Produce the electrical impulse Protect and assist the function of neurons Store memories Synthesize neurotransmitters Question 10 The autonomic nervous system (ANS) mainly influences the internal organs of the body. Answers: True False Question 11 Muscle cells are filled with specialized proteins that allow for contraction to occur. Answers: True False Question 12 The cranial nerves are classified as part of the peripheral nervous system and provide sensory and motor function primarily to the head and neck. Answers: True False Question 13 Which portion of the brain allows for balance, coordinated movement of large muscle groups, posture, and overall coordination? Answers: Cerebellum Cerebrum Brain stem Diencephalon Question 14 The sarcomeres are the smallest structural unit of a muscle cell and consists of a unique arrangement of thin and thick filaments. Answers: True False Question 15 What is the largest portion of the brain that allows for your ability to think, feel, see, and use social judgment? Answers: Cerebellum Cerebrum Brain stem Diencephalon Question 16 Grey matter of the central nervous system is a collection of neuron axons. Answers: True False Question 17 Which portion of the neuron contains the nucleus? Answers: Cell body (soma) Axon Glia cells Dendrites Question 18 White matter in the central nervous system (CNS) performs the neural integration–in other words, the decision-making process and storage of memories. Answers: True False Question 19 What best describes a muscle fascicle? Answers: A bundle of thick and thin filaments A bundle of muscles A bundle of muscle cells (fibers) The layer of the fascia around the muscle Question 20 The spinal cord relays information from the body to the brain and from the brain to the body via spinal nerve tracts. Answers: True False

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