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BIO 255- TEST 2 Questions and Answers Which of the following best describes the direction and function of efferent signals? -away from CNS to cause effect on glands, muscle efferent nervous system somatic sympathetic parasympathetic Autonomic nervous system Parasympathetic pathways Sympathetic pathways Adrenal sympathetic pathways ganglion A location outside of the central nervous system where autonomic signals can synapse -cluster preganglionic autonomic ne...

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2 pages

Written in 2025/2026

Grade A+

Pogba119

Bio 255 Lab Week 3 Questions and Answers areolar connective tissue Binds and cushions organs and skin By volume, mostly viscous ground substance Elastic properties from loosely organized protein fibers Highly vascularized adipose tissue Stores triglycerides for a future source of energy (fat cells) Insulation, protects vital organs Only connective tissue with more cells than matrix reticular connective tissue Reticular fibers provide framework (stroma) of organs Found in ...

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5 pages

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Grade A+

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Anatomy & Physiology III - BIOS 255 (Proficiency Exam Review) Questions and Answers does the right atrium have oxygenated or deoxygenated blood? deoxygenated oxygen is carried by _____ cells. It binds to proteins called _____ that contain iron. erythrocytes; hemoglobin which element is responsible for immune function, clotting, and gas transfer? (in this particular order) leukocytes; platelets; erythrocytes what are the major functions of blood? - plays a role in immune...

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4 pages

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Grade A+

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BIOS 255 Comprehensive Exam Questions and Answers correct Stroke Volume (SV) EDV-ESV Cardiac Output (CO) SV x HR Pulse Pressure (PP) SBP-DBP Mean Arterial Pressure (MAP) diastolic pressure + pulse pressure/3 What is the QRS complex of an ECG? ventricular depolarization endocrine cells release their secretions directly into body fluids exocrine glands secrete chemical substances into ducts that lead either to other organs or out of the body ...

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2 pages

Written in 2025/2026

Grade A+

Pogba119

Exam 3 Bios 255 Questions and Answers What is the function of the immune reproductive system protects body from infection and fights of pathogen what are the two major defense of immune adaptive and innate non-specific immunity general mechanisms that defend the body against foreign invaders. YOU ARE BORN WITH IT First line of defense skin, mucous membrane, sebum internal defenses: second line of defense inflammation interferon compliment fever phagocytosis ...

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3 pages

Written in 2025/2026

Grade A+

Pogba119

Bio 255 exam 2 Questions and Answers The place where two bones meet is called ______. articulation Growth from within cartilage is called ______. interstitial growth Cartilage is what type of tissue? connective In interstitial growth of cartilage ______. news cells and new matrix are produced Chondrocytes occupy small spaces called lacunae Which statements characterize cartilage? It supports soft tissues It provides a gliding surface at joints. It prov...

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26 pages

Written in 2025/2026

Grade A+

Pogba119

BIOS 255 – Final Questions and Answers What are the 2 type of immune response? Innate Immunity and Adaptive Immunity Which lines of defense make up innate immunity? 1st and 2nd line of defense Innate Immunity characteristics Non-specific resistance Present at birth 1st & 2nd line of defense What is the 1st line of defense? Skin & Mucous Membranes What is the 2nd line of defense? Internal Defenses The 1st line of defense is made up of what 2 types? Me...

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16 pages

Written in 2025/2026

Grade A+

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BIL 255 exam 1 Questions and Answers vitalism life is a result of a vital force mechanists life was a mechanical process that can be explained by the laws of chemistry and physics What are the three domains? eubacteria, archaea, eukarya Carl woese compared nucleotide sequences of small subunit RNA from many species.. ribosomes and rRNA are found in all cells.. common ancestory What are the two successful plans of cellular organization? prokaryotes and eukaryotes...

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10 pages

Written in 2025/2026

Grade A+

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BIOS255 EXAM 2 Questions and Answers Characteristics of Elastic arteries(Conducting arteries) -largest arteries by diameter -contain more elastic fibers than smooth muscle -conduct blood from the heart to the more distant muscular arteries -pressure reservoirs Muscular arteries(distributing arteries) -Distribute blood to various parts of the body -Contain large amounts of smooth muscle, most named arteries in the body fall into this category Characteristics of Arterioles -s...

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7 pages

Written in 2025/2026

Grade A+

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BIOS 255 Exam 1 Questions and Answers correct General functions of cardiovascular system - transportation - regulation - protection parts of centrifuged blood - plasma - buffy coat - hematocrit what is in plasma water, dissolved gases, nutrients, waste products, proteins what is in the buffy coat WBC's and platelets what is in the hematocrit RBCS what percentage of blood is made of plasma 55% what percentage of blood is made of the buffy co...

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2 pages

Written in 2025/2026

Grade A+

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Bios 255 Exam 3 Questions and Answers correct red bone marrow and thymus What are the primary lymphatic organs? lymph nodes, tonsils, spleen What are the secondary lymphatic organs? 15% of interstitial fluid that has been absorbed by the lymphatic vessels What is lymph? A pump such as the heart What do lymphatic vessels lack? Stretching of the vessels to open valves that allow one directional flow for lymph What do lymphatic vessels rely on? from blood th...

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7 pages

Written in 2025/2026

Grade A+

Pogba119

Bio 255 Exam 2 Questions and Answers Tunica Interna Innermost layer of blood vessels. Tunica Media Middle layer made of smooth muscle. Tunica Externa Outermost layer; anchors blood vessels. Conducting Arteries Large diameter arteries with elastic lamina. Distributing Arteries Medium arteries that supply specific organs. Resistance Arteries Small arteries; include arterioles. Vascular Resistance Opposition to blood flow in vessels. Blood Vi...

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7 pages

Written in 2025/2026

Grade A+

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Bio 255 Unit 4 Test Practice Questions and Answers Body Systemic means.... Arteries Anything that flows AWAY from the heart veins Anything that flows TO the heart Transportation Regulation Protection What are the 3 function of blood? 8% Blood is what percentage of body weight? 55% 45% In whole blood: _________% Plasma _________% Formed elements (Blood cells) Hematocrit percentage of volume of all formed elements Neutrophils 50-70% o...

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4 pages

Written in 2025/2026

Grade A+

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Bios 255 Exam 2 Questions and Answers What types of vessels carry blood from the heart? Arteries Which type of muscle tissue is found in blood vessels? smooth Which form of membrane movement is ideal for the transport of gases? Simple diffusion Which blood vessel wall consist of a simple squamous epithelium commonly referred to as endothelium ? Tunica interna What is the primary function of cartoid sinuses? Monitoring blood pressure (Bareceptors) Which ty...

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4 pages

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Grade A+

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BIOS 255 Comprehensive exam Questions and Answers Which is the best example of a mechanism that contains a positive feedback loop? blood clotting What surrounds a synovial joint, encloses synovial cavity, & unites the articulating bones? articular capsule The ________ component of connective tissue is found between the cells and fibers & binds cells. ground substance Consisting of 5 fused sacral vertebrae sacrum Layer of dead skin filled with sacs of keratin str...

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3 pages

Written in 2025/2026

Grade A+

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Bio 255 Exam 2 Questions and Answers How many layers do blood vessels contain? 3 Tunica externa consists of epithelial cells, connective tissue, elastic fibers Tunica media consists of elastic fibers and smooth muscle (usually the largest layer) tunica intima (interna) endothelial cells, connective tissue Elastic arteries largest arteries by diameter, contain more elastic fibers than smooth muscle Muscular arteries (distributing arteries) contain large a...

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2 pages

Written in 2025/2026

Grade A+

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BIOS 255 Comprehensive Exams Questions and Answers Cation A positively charged ion primary active transport mechanism of active transport Meiosis type of cell division takes place in the sex cells to produce sperm Collagen type of fiber in extracellular matrix provides tensile strength hypertonic cause red blood cells to shrivel Stratum basale epidermis contains melanocytes on which layer eccrine sweat glands produce a thin watery sweat that regu...

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3 pages

Written in 2025/2026

Grade A+

Pogba119

BIO 255 lab practicum Questions and Answers plasma Liquid part of blood Buffy coat white blood cells and platelets erythrocytes ( red blood cell) leukocytes white blood cells, fight infection platelets blood clotting Blood typing roles of antigen markers that tell your body that something is foreign Roles of antibodies 1. Agglutinate Pathogens 2. Neutralizing Toxins 3. Prevent the pathogen from binding to human cells neutrophils A...

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9 pages

Written in 2025/2026

Grade A+

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BIOS 255 EXAM 2 Questions and Answers What are the 3 different layers of blood vessels? tunica intima, tunica media, tunica externa What are the three different types of arteries? elastic arteries, muscular arteries, arterioles What kind of blood do arteries carry? oxygenated blood Where do arteries carry blood? away from the heart What are the three different types of capillaries? continuous, fenestrated, and sinusoidal What cells are continuous capillar...

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2 pages

Written in 2025/2026

Grade A+

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BIOS 255 Comprehensive Exam Questions and Answers Stroke Volume (SV) EDV-ESV Cardiac Output (CO) SV x HR Pulse Pressure (PP) SBP-DBP Mean Arterial Pressure (MAP) diastolic pressure + pulse pressure/3 What is the QRS complex of an ECG? ventricular depolarization endocrine cells release their secretions directly into body fluids exocrine glands secrete chemical substances into ducts that lead either to other organs or out of the body nerve t...

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2 pages

Written in 2025/2026

Grade A+

Pogba119