What are meninges?
A) Bones in the forearm B) Blood-clotting cells C) Hormones of the thyroid D) Protective membranes around brain and spinal […]
Biology, Nervous System
Nervous System
Biology, Nervous System
What are motor neurons primarily responsible for?
A) Carrying commands from the CNS to muscles or glands B) Filtering blood in kidneys C) Absorbing food into intestine […]
Biology, Nervous System
What are nodes of Ranvier?
A) Organs that make thyroid hormone B) Gaps in the myelin sheath along an axon C) Bone joints D) Compartments […]
Biology, Nervous System
What are sensory neurons primarily responsible for?
A) Pumping blood from the heart B) Making antibodies C) Transporting xylem sap D) Carrying information from receptors toward the […]
Biology, Nervous System
What carries a command from the CNS to a muscle?
A) Sensory receptor B) Motor neuron C) Red blood cell D) Alveolus Answer: B Explanation: Motor neurons deliver impulses to […]
Biology, Nervous System
What carries a signal from a sensory receptor toward the central nervous system?
A) Sensory neuron B) Motor neuron only C) Red blood cell D) Platelet Answer: A Explanation: Sensory neurons convey information […]
Biology, Nervous System
What does a motor neuron stimulate when it ends at a neuromuscular junction?
A) A kidney stone B) An ocean wave C) A chromosome D) A muscle fiber Answer: D Explanation: Motor neuron […]
Biology, Nervous System
What does the eye lens do when focusing on nearby objects?
A) It becomes opaque B) It turns into a retina C) It stops refracting D) It becomes more curved Answer: […]
Biology, Nervous System
What happens to the pupil in bright light under a normal light reflex?
A) It disappears B) It becomes a lens C) It constricts D) It always dilates Answer: C Explanation: The iris […]
Biology, Nervous System
What is a neurotransmitter?
A) A chemical messenger released at a synapse B) A bone mineral C) A type of red cell D) A […]