Ecpi Unit 4 Exam Questions With All Complete And Verified Solutions Graded A+

Part of the nervous system that carries signals to smooth muscles and glands - correct answer Autonomic motor division Part of the nervous system that carries signals from sensory receptors to the brain and spinal cord - correct answer Sensory division The subcategory of that efferent peripheral nervous system that conducts impulses from the brain and spinal cord to skeletal muscles causing us to respond to change in the environment is known as the - correct answer Somatic nervous system The neuroglial cells that can phagocytize bacterial cells and increase when there is inflammation of the brain or spinal cord are called - correct answer Microglia The peripheral nervous system consists of - correct answer cranial nerves and spinal nerves The part of the nerve cell that transmits impulses away from the cell body is the - correct answer Axon Type of impulse conduction where the action potential appears to jump from one node of Ranvier to the next: - correct answer saltatory conduction What can be defined as "gaps in the myelin sheath between the Schwann cells" ? - correct answer Nodes of Ranvier Neuroglia that forms myelin in the central nervous system (CNS): - correct answer Oligodendrocyetes Neurons that conduct impulses from the CNS to muscles or glands are - correct answer motor neurons When the membrane potential becomes more negative due to leaking K+ ions causing the membrane potential to go down to - 90mV, it is said to be ? - correct answer Hyperpolarizing Which of the following systems consists of the brain and spinal cord? - correct answer central nervous system Convergent neurons - correct answer Have impulses coming in from multiple presynaptic neurons Neuroglia mainly responsible for forming scar tissue and part of the blood brain barrier in the CNS: - correct answer astrocytes This type of neuroglial cell will line the central canal of the spinal cord and ventricles of the brain, help regulate the cerebral spinal fluid and are a type of cuboidal or columnar cells? - correct answer Ependyma or ependymal cells Minimal strength of stimulus (voltage level) required to trigger an action potential: - correct answer threshold potential Neuroglia that forms myelin in the peripheral nervous system (PNS): - correct answer Schwann cells The functional connection between two neurons is a - correct answer synapse Do neuron bodies regenerate? - correct answer No Neurons that have one axon and many dendrites - correct answer multipolar The hormone that prepares our bodies for emergency action (the "fight or flight" mode) is - correct answer epinephrine Hormone that contracts the uterus in a positive feedback cycle during child birth: - correct answer oxytocin Hormone that elevates blood calcium: - correct answer parathyroid hormone Hormone that stimulates kidneys to conserve water: - correct answer antidiuretic hormone _____________glands are called ductless glands or glands of internal secretion because they deliver their secretions (hormones) directly into the bloodstream. - correct answer Endocrine Olfactory and gustatory receptors are types of: - correct answer Chemooreceptors The brain interprets input from sensory receptors as - correct answer perception ____________is a condition caused by decreased secretion of insulin or the ineffective use of insulin. - correct answer Diabetes mellitus Receptors for the general senses are found - correct answer widely distributed throughout the body The "window" of the eye that is transparent and the most anterior part of the eye: - correct answer Cornea Tropic hormones - correct answer stimulate certain endocrine glands to secrete hormones. Receptors for the special senses are found - correct answer primarily in the head Another name for pain receptor - correct answer nociceptor The shape of the lens changes as the eye focuses on a close object in a process known as - correct answer accommodation Hormone that elevates blood glucose: - correct answer glucagon Hormones that the posterior pituitary secretes are synthesized in the - correct answer hypothalamus hormone from the thyroid gland that increases basal metabolic rate: - correct answer T3 Special sense structure mainly involved with dynamic equilibrium: - correct answer semi-circular canals Which structure within the eye is responsible for color vision? - correct answer cones Special sense structure mainly i