16 Jun Blood pressure is weakest in o veins o arterioles o
Question
1.Blood pressure is weakest in
o veins
o arterioles
o capillaries
o venules
·
· 2. Signals are propagated along axons by
o neurotransmitter channels
o voltage-gated channels
o gap junctions
o the cytoskeleton
·
· 3. Peripheral nerves synapse with
o skin
o muscle
o bone
o cortex
·
· 4. The limbic system controls
o emotion and mood
o complex analysis
o heartbeat and breathing
o reflexes
·
· 5. Sensory neurons include dendrites that
o receive environmental information
o provide logical analyses
o directly stimulate muscle
·
· 6. Myelin acts as
o a bacterial barrier
o insulation
o a neurotransmitter
·
· 7. A neuron sends its own signal when incoming signals trigger an
o action potential
o resting potential
o signaling potential
o peak potential
·
· 8. Proprioceptors are located within
o bone
o muscle
o skin
o spinal cord
·
· 9. Myelin is formed by
o axons
o the retina
o oligodendroglia
o astroglia
·
· 10. Carbon monoxide interferes with oxygen delivery because it
o has higher affinity for hemoglobin
o concentrates within tissues
o prevents CO2 removal
o all of these
·
· 11. A double circulatory system is important for
o large animals
o fast metabolism
o an emergency backup
·
· 12. Hypertension refers to
o elevated blood pressure
o reduced blood pressure
o elevated levels of iron
o elevated levels of blood gases
·
· 13. The Rh factor is
o measurement of blood pressure
o a blood cell antigen
o a type of antibody
·
· 14. The cerebral cortex controls
o emotion and mood
o complex analysis
o heartbeat and breathing
o reflexes
·
· 15. The spleen
o filters blood
o contains a reserve of red blood cells
o forms white blood cells
·
· 16. Sensory information is processed by the
o central nervous system
o peripheral nervous system
o both
·
· 17. The region of neuron that is in close contact with its recipient cell is called a
o plaque
o synapse
o tight junction
·
· 18. Myelin wraps
o the central nervous system
o long axons
o dendrites
o the retina
·
· 19. Heartbeat and breathing are controlled by the
o somatic system
o autonomic system
·
· 20. Skin cells contain neurons that respond to
o pain
o pressure
o heat
o all of these
· 21. A unique difficulty with replacement of neurons with stem cells is
o penetrating the meninges
o inducing stem cells to differentiate into neurons
o establishing appropriate synaptic connections
22. Long term memory involves
o formation of new synapses
o strengthening of existing synapses
o increased axonal size
o all of these
·
· 23. Bone marrow tissues
o filter blood
o contain a reserve of red blood cells
o form white blood cells
·
· 24. When released, neurotransmitters bind to
o transmembrane proteins
o carrier proteins
o internal proteins
·
· 25. Nervous system input increases the ______ of heartbeat
o strength
o rate
o duration
o all of these
·
· 26. Motor output information is sent from the _______ to the ______nervous system
o Central, peripheral
o Peripheral, central
o sympathetic, parasympathetic
·
· 27. Neurotransmitters cross the
o dendritic membrane
o synapse
o myelin sheath
·
· 28. The Vagus nerve regulates
o heartbeat
o breathing
o sweating
o all of these
·
· 29. Fluid within tissues is
o lymph
o plasma
o interstitial
·
· 30. Fluid within capillary beds of tissues is
o lymph
o plasma
o interstitial
·
· 31. ALS affects the
o hippocampus
o brainstem
o motor neurons
o sensory neurons
·
· 32. Hypertrophic cardiomyopathy is when
o the heart beats too fast
o heart walls are too thick
o a rupture in a heart valve
·
· 33. Myelin increases
o neurotransmitter production
o dendritic growth
o signal transmission along axons
o brain circulation
·
· 34. Neurons send a signal using their
o dendrites
o soma
o axon
·
· 35. Information comes into neurons via
o dendrites
o axons
o myelin
·
· 36. The spinal cord controls
o emotion and mood
o complex analysis
o heartbeat and breathing
o reflexes
·
· 37. A nerve consists of many
o dendrites
o axons
o neurons
·
· 38. Traumatic brain injury results from
o a frightening event
o physical damage
o genetic predisposition
·
· 39. Balance is sensed by the
o retina
o motor neurons
o brain stem
o inner ear
·
· 40. Exchange of gas and nutrients occurs at
o venules
o arterioles
o capillary bed
·
·
· 41. The lymph system
o produces blood cells
o drains fluid from the body
o removes CO2 from tissues
·
· 42. Platelets
o mediate blood clotting
o filter blood
o remove CO2 from tissues
o all of these
·
· 43. Fluid leaves closed circulatory systems
o lymph nodes
o fenestrated capillaries
o septa
o valves
·
· 44. Some axons are wrapped in
o myelin
o cell walls
o cartilage
·
· 45. CO2 in blood
o maintains blood pH
o interferes with oxygen delivery
o regulates iron levels
·
·
· 46. Lymph nodes
o filter blood
o contain a reserve of red blood cells
o form white blood cells
·
· 47. Myoglobin
o carries oxygen
o carries CO2
o carries both
o carries neither
·
· 48. The cells that sense light in the eye are
o ganglion cells
o bipolar neurons
o rod and cone cells
·
· 49. The sciatic nerve is located in the
o brainstem
o spinal cord
o inner ear
o cortex
o leg
·
· 50. The human heart has
o 2 chambers
o 3 chambers
o 4 chambers
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