Chapter 8

The three protective membranes that surround the brain and spinal cord form the a. meninges. b. white matter. c. blood-brain barrier. d. reticular activating system. e. corpus callosum.

The autonomic nervous system a. cannot be affected by emotional states. b. controls conscious body movements. c. is entirely contained within the central nervous system. d. automatically adjusts the functioning of internal organs to suit conditions.

Which of the following lists the parts of a reflex arc in the correct sequence? a. receptor, sensory neuron, motor neuron, interneuron, effector b. effector, receptor, sensory neuron, motor neuron, interneuron c. effector, sensory neuron, receptor, interneuron, motor neuron d. receptor, sensory neuron, interneuron, motor neuron, effector

The area of the sensory cortex in the cerebrum devoted to each part of the body a. is exactly the same as the area of the motor cortex devoted to each region of the body. b. depends on how far away that region of the body is from the brain. c. is greater for regions of the body that are most sensitive to touch. d. is smaller on the left cerebral hemisphere than on the right cerebral hemisphere.

Choose the correct statement about the parasympathetic nervous system. a. It increases heart rate. b. Its actions back up those of the sympathetic nervous system; that is, usually its actions have the same effect as those of the sympathetic nervous system but start after a delay. c. It directs blood toward the skeletal muscles. d. none of the above

Your friend suffered a stroke and now has no feeling in her right arm and is unable to move it. The damage is most likely in the a. medulla. b. left cerebral hemisphere. c. right cerebral hemisphere. d. hypothalamus.

Which of the following is not a function of the hypothalamus? a. regulation of heart rate b. sensory-motor coordination c. appetite d. regulation of blood pressure

Subconscious, rather automatic, activities such as breathing and heartbeat are regulated by the a. cerebrum. b. cerebellum. c. pons. d. medulla.

The brain stem consists of these structures: a. medulla oblongata, pons, and midbrain b. medulla oblongata, cerebellum, and pons c. pons, midbrain, and cerebellum d. pons, midbrain, and thalamus

If someone were to yell, "Fire!" now and you suddenly began to smell smoke, which part of your nervous system would become activated to prepare your internal body systems to deal with the dangerous situation? a. somatic system b. parasympathetic system c. sympathetic system d. meninges

Which of the following is responsible for reasoning? a. amygdala b. basal nuclei c. hippocampus d. cerebral cortex

You are watching a football game with your friends. A wide receiver makes an incredible catch and then runs 20 yards, skillfully dodging defensive players to make a touchdown. Your friend Joe says, "Amazing! How does he do that?" The receiver's outstanding sensory-motor coordination is largely due to the actions of his a. cerebellum. b. medulla. c. reticular activating system. A, hypothalamus

As you sit here studying, you are unlikely to be aware of the pressure of your clothes against your body and the rustling of paper as other students turn pages. Which part of the brain "decides" that these are unimportant stimuli? a. reticular activating system b. cerebellum c. hypothalamus d. medulla

Belinda was riding a bicycle without a helmet and was struck by a car. She hit the back of her head very hard in the fall. The physician is quite concerned because the medulla is located at the base of the skull. She explains to Belinda's parents that injury to the medulla could result in a. the loss of coordination, such that the child may never regain the motor skills needed to ride a bicycle. b. the loss of speech. c. amnesia (the loss of memory). d. death, because many life-support systems are controlled here.