BIOL460

BIOL460 -- EXAM 4 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED A++ thyroid gland largest endocrine gland what is the thyroid made out of ? thyroid follicles thyroid follicles contain colloid suspension what do parafollicular cells between follicles produce? calcitonin calcitonin decreases amount of calcium in blood decrease of calcium 1. kidneys excrete calcium in urine 2. inhibits osteoclasts calcium is necessary for muscle contraction, exocytosis of NTs, part of...

BIOL460 EXAM 1 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE Physiology Nature Study Pathophysiology How physiology is affected by disease or injury Stages of drug trials Animal models first, enter clinical trials when proven safe and effective Phase 1: Testing on healthy humans - can be months to 2 years Phase 2: Some of population with disorder or disease of interest - months to 2 years Phase 3: Additional disorders + one of interest - both sexes and man...

BIOL460 EXAM 3 KAHOOT QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED A++ parasympathetic preganglionic neurons tend to be longer than sympathetic preganglionic neurons true parasympathetic postganglionic neurons tend to be longer than sympathetic postganglionic neurons false what neurotransmitter is found at the synapses in the ganglia of the autonomic nervous system acetylcholine swellings on postganglionic neuron axons where neurotransmitters are released at synapses en p...

BIOL460 - FINAL EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED the pineal gland releasing melatonin into your bloodstream is an example of _____ signaling. endocrine what role does the heart play in this depiction of the negative feedback loop involving blood pressure? effector Parkinson's disease is difficult to treat because it results from a deficiency of dopamine in the brain and giving an individual dopamine, unfortunately, has no impact on the disorder. This is becau...

BIOL460 CHAPTER 6 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED The extracellular environment refers to... everything outside of the cell What does the fluid compartment of the extracellular environment do? dissolve molecules What provides structural support for the extracellular environment? a matrix of proteins and polysaccharides What fluid is derived from blood plasma? interstitial fluid (tissue fluid) What does the extracellular environment provide for the cell? no...

BIOL460 EXAM 3 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED collateral ganglia Anterior to the vertebral bodies; innervate tissues and organs in the abdominopelvic cavity - include celiac and superior/inferior mesenteric Preganglionic Neurons originate in midbrane and hindbrain Cell body in CNS, synapse with postganglionic neuron Postganglionic Neurons Cell body in ganglia, synapse with effector visceral effectors - Contract rhythmically on its own without neural input - Dam...

BIOL460 - EXAM 3 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED sympathetic function fight or flight norepinephrine postganglionic neurons norepinephrine and epinephrine adrenal medulla effects of sympathetic increased HR, increased blood glucose, blood to skeletal muscles parasympathetic rest and digest acetylcholine released from postganglionic neurons effects of parasympathetic decrease heart rate, increase digestive activity, dilate visceral blood vessels adrenergic ...

BIOL460 EXAM3 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED What do endocrine glands do? secrete hormones into the blood Are endocrine glands ductless or do they have ducts? Ductless Examples of organs that are endocrine glands: Heart, liver, kidneys, skin, stomach The target cells that hormones act on are called what? Receptors Nuerohormones secreted by specialized cells of the hypothalamus ex) oxytocin, vasopressin Hormones regulate body metabolism, growth, and reproduc...

BIOL460 EXAM 4 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED True or False: Skeletal muscles with a low innervation ratio have a low degree of neural control, i.e. they are not very precise. False ________ ___________ is characterized by continued attachment of myosin cross bridge heads to actin filaments due to a lack of ATP. rigor mortis What structures carry the action potentials into the interior of the muscle to cause muscle contraction? T tubules Check out the microscope im...

BIOL460 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED central nervous system brain and spinal cord peripheral nervous system cranial and spinal nerves neuron basic structural and functional unit cannot divide by mitosis Neuroglia (glial cells) cells that support and protect neurons can divide by mitosis originate in ectoderm cell body enlarged portion of the neuron with nucleus + other organelles and macromolecules nuclei group of neuron cell bodies (CNS) gangli...