BIOL 251

Anatomy - Answer study of structure (size, shape, color, weight, location, composition) Physiology - Answer study of function (the contribution to the body) Why are anatomy and physiology studied together? - Answer The structure of a part of the body often reflects its function. Homeostasis - Answer maintaining a stable internal environment within the body Two sub disciplines of anatomy - Answer Cell biology and histology Two sub disciplines of physio...

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13 pages

Written in 2025/2026

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When two neurons are communicating with each other at a chemical synapse, the ( ) neuron releases neurotransmitters that diffuse across the synaptic cleft and bind to receptors on the membrane of the ( ) neuron. - Answer presynaptic: postsynaptic In neurons, where is neurotransmitter stored? - Answer within synaptic vesicles in the axon terminal Which of the following is a mechanism whereby neurotransmitters are rapidly removed from the synaptic cleft thus terminating the signa...

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13 pages

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...... contractions are responsible for mixing the colonic contents, while ........ periodically propel the contents long distances. - Answer Haustral, mass movements Carbohydrates digestion takes place in the ......(what part) of the stomach under the influence of ...... (what enzyme), while protein digestion takes place in the ...... under the influence of ....... - Answer body, salivary amylase, antrum, pepsin (+HCl) Colonic secretion consists of ...... - Answer mucus ...

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2 pages

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1. Which of the following would be considered a symptom of disease? A) tremors in the hands B) excessive urine output C) a skin rash D) dizziness E) diarrhea - Answer D) Dizziness Human bodies are able to maintain a certain constancy of their internal environment. This statement A) refers only to the physiology of the vascular (circulatory) system. B) refers to homeostasis in the body. C) tells how positive feedback mechanisms work. D) refers to the direct control of cell ac...

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16 pages

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tissues - Answer any grouping of cells that are similar in structure and carry out a similar or common function in the body pros and cons of tissues - Answer pros: cell specialization allows body to carry out complicated functions cons: destruction of one cell type can be catastrophic 4 primary tissue types - Answer nervous, muscle, epithelial, connective nervous tissue - Answer regulates and controls body functions, composed of brain, spinal cord, nerves ne...

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10 pages

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Anatomy - Answer study of the structure Physiology - Answer study of the function Embryology - Answer the study of embryos Developmental biology - Answer development of the zygote to death Cell biology - Answer study of cellular functions and structures Histology - Answer the study of the microscopic structure of the body (tissues using microscopes) Gross anatomy - Answer things you can see without a microscope, study of structure sy...

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17 pages

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the activity of the respiratory system can compensate for an acidosis, i.e decrease in pH by A.) a hyperventilation-induced increase in CO2 in the body B.) a hypoventilation-induced increase in CO2 in the body C.) a hyperventilation-induced decreased in CO2 in the body D.) a hypoventilation-induced decreased in CO2 in the body E.) increasing the amount of hydrogen ion in the blood - Answer C.) a hyperventilation-induced decreased in CO2 in the body which of the following acts as a ...

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12 pages

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anatomy - Answer study of structure physiology - Answer study of how body parts function level of structural organization - Answer chemical, cellular, tissue, organ, organ system, organismal 11 systems of the human body - Answer integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, reproductive integumentary components - Answer skin, hair, nails integumentary functions - Answer protect...

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26 pages

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tissues get together to make - Answer organs classify H20 - Answer molecules classify kidney - Answer organ system that transports oxygen - Answer cardiovascular system that ovaries belong in - Answer reproductive & immune first part that notices something wrong - Answer receptor messages away - Answer efferent pathway solves problem - Answer effector most common in healthy person - Answer negative feedback spinal c...

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11 pages

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Muscles make up how much of your weight? - Answer about 1/2 What are the three types of muscles? - Answer skeletal, smooth, cardiac Muscles are specialized to convert ____ energy to ____ energy. - Answer chemical, mechanical How many skeletal muscles are in the human body? - Answer more than 600 Skeletal muscle includes: - Answer skeletal muscle tissue, connective tissues, nerves and blood vessels Skeletal muscles do not contract until what occurs? - ...

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17 pages

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Microorganism - Answer a small, microscopic organism consisting of a single cell or cell cluster Microscopic - Answer too small to see with the naked eye Microbiology - Answer the study of microorganisms (focused specifically on the small size) The main role of bacteria and archaea - Answer catalysts of biogeochemical cycles Bacteria and Archea made ___ - Answer life on Earth possible Animal and plant life are completely dependent upon - Answer ...

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16 pages

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1) Actin is one of the most evolutionarily conserved proteins. What does this tell you about the structure and function of this protein in eukaryotic cells? - Answer Evolutionarily conserved-hasn't undergone much change since existence of eukaryotes. Tells us that this protein is vital for cellular function. Tells us it can do a variety of functions in cells. Its so conserved because it is very important for cells. Multifunctional makes it more well-conserved because monomers that mak...

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21 pages

Written in 2025/2026

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