1. Which of the following is the control and coordination center in humans?
A. Brain and spinal cord
B. Peripheral nervous system
C. Endocrine system
D. Respiratory system
ANSWER: A.Brain and spinal cord
SOLUTION :The brain and spinal cord, which together make up the central nervous system (CNS), are the control and coordination center in humans
2. The human nervous system is divided into two parts ______.
A. Central nervous system and autonomic nervous system
B. Central nervous system and peripheral nervous system
C. Peripheral nervous system and autonomic nervous system
D. None of the above
ANSWER:B.Central nervous system and peripheral nervous system
SOLUTION:The human nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS)
3. Which of the following is NOT a type of neuron?
A. Sensory neuron
B. Motor neuron
C. Relay neuron
D. Respiratory neuron
ANSWER :D.Respiratory neuron
SOLUTION:Respiratory neuron
4. The chemical messengers released by endocrine glands are called ________.
A. Hormones
B. Neurotransmitters
C. Enzymes
D. Digestive juices
ANSWER: A.Hormones
SOLUTION: Hormones are the body’s chemical messengers. They carry information and instructions from one set of cells to another.
5. Which of the following glands is responsible for the regulation of metabolism?
A. Thyroid gland
B. Adrenal gland
C. Pituitary gland
D. Pancreas
ANSWER: A.Thyroid gland
SOLUTION:The hormone that controls the basal metabolic rate of the body is thyroid gland.
6. The hormone responsible for the regulation of blood glucose levels is ___________.
A. Insulin
B. Glucagon
C. Adrenaline
D. Thyroxine
ANSWER: A.Insulin
SOLUTION:Insulin and glucagon are the hormones that are involved in maintaining blood sugar (glucose) levels. Insulin lowers blood sugar level while glucagon raises it. Therefore, a balance of both these hormones is necessary to maintain the blood sugar level.
7. The sense of smell is detected by ________.
A. Taste buds
B. Olfactory receptors
C. Touch receptors
D. None of the above
ANSWER:B.Olfactory receptors
SOLUTIONIn humans and other vertebrates, smells are sensed by olfactory sensory neurons in the olfactory epithelium. The olfactory epithelium is made up of at least six morphologically and biochemically different cell types.
8. Which of the following is responsible for the coordination of voluntary movement in humans?
A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Hypothalamus
ANSWER: B.Cerebellum
SOLUTION: The cerebellum is responsible for voluntary movements such as balance, coordination, and posture. It is located near the brainstem.
9. Which of the following is NOT a reflex action?
A. Blinking of eyes
B. Coughing
C. Sneezing
D. Shivering
ANSWER:D.Shivering
SOLUTION: Shivering is not a reflex action. A reflex action is a spontaneous response to a stimulus, while shivering is a bodily function that occurs in response to cold or fear in warm-blooded animals.
10. The type of neuron that carries impulses from sensory receptors to the central nervous system is called_________.
A. Sensory neuron
B. Motor neuron
C. Relay neuron
D. None of the above
ANSWER: A.Sensory neuron
SOLUTION:
Sensory neurons are the neurons that carry impulses from receptor to the brain where the sensation is interpreted. Sensory neurons are afferent neurons since they take the sensation/stimulus towards the CNS, that is, the brain and the spinal cord.