Backup of Unit 5 My Notes - Madi Wark

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School
EARTH Unviversity, San Jose **We aren't endorsed by this school
Course
PHYSIOLOGY 12
Subject
Anatomy
Date
May 16, 2023
Pages
15
Uploaded by DeanIron9901 on coursehero.com
Madi Wark Meg Hale Anatomy and Physiology 12 October 24, 2022 Unit 5 - Organization of the body and Digestive System; Part 1: Human Organization pg. 1 Main Idea; Levels of Organization Cells, Tissues, Organs, Organ Systems, Organism Types of Tissues; Epithelial Tissue (type of body tissue) Are tightly packed cell and form a continuous layer. It covers surfaces and lines body cavities. Function; external; protects body from injury, drying out, possible invasion. Internal; protects, secretion, absorption, excretion, filtration Characteristics; cell composition, number of layers Definition; Gland - single or multiple cell. Function; secretion and production Connective Tissue; Binds organs together, protects, supports, stores fat fills spaces and produces blood cells Function/Types - Loose Fibrous; supports epithelium and internal organs; space between components Adipose Tissue: Stored "fat tissue." Can be used for energy, insulation, and organ protection. Cartilage: Solid but flexible. Cells in lacunae. Support and protection. Heals slowly because of lack of blood supply. Bone; most rigid, hard but slightly elastic. Support and production. Epithelial Tissue: Simple squamous (one layer and flattened cells) Simple cuboidal (cube) Stratified squamous (layered) Simple columnar (column)
Pseudostratified columnar (fake, looks layered but is just one layer, has cilia on top) Connective Tissue - Liquid connective tissue - isn't made up of cells White blood cells - large immune cells Red Blood Cells: Small biconcave cells that lack a nucleus. Involved in gas transport. Platelets: Fragmented cells/pieces of cells. Clots (fills holes) in blood vessels. Matrix: Plasma: liquid layer (~55%). Made up of mainly water Muscle Tissue - - Made up of actin and myosin proteins - Function; movement Types/Functions; Skeletal; - Voluntary - Stratified cells, multiple nuclei - In muscles attached to skeleton - Movement of body Smooth; - Involuntary - Spindle-shaped cells, single nucleus - No striation - In blood vessels, digestive tract walls - Movement through luman
Cardiac; - Involuntary - Branching, striated cells, each has a nucleus - In heart wall, pumps blood Nervous Tissue; - Neurons (cells) - Conducts impulses to transmit and receive messages - In the brain, spinal cord, nerves in the body - Function; sensory input, integration of data, motor output - Sensation occurs in the brain Body Systems; Cardiovascular System: Transports blood, nutrients, gases, and wastes to all parts of body. Digestive System: Takes in & digests food. Eliminates solid waste. Respiratory System: Brings oxygen into the body. Exchanges gases with lungs & tissues. Urinary System: Removes liquid and gas wastes from the body. Immune System: Defends the body against infections and disease. Endocrine System: Manufactures and release hormones. Reproductive System: Includes reproductive organs for producing offspring. Integumentary System: Includes skin, hair, and nails. Creates a protective barrier around body. Skeletal System: Supports, protects and works with muscles to move parts of the body. Muscular System: Has muscles that work with the bones to move parts of the body. Nervous System: Detects changes in the environment and signals the body to respond. Part ll: Digestive System All organisms need to break down macromolecules to absorb the nutrient monomers required for normal functionality. Digestion;
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