Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Human Biology I. Body Tissues A. Epithelial Tissue 1. Covers all surfaces (protects). 2. Line most internal organs (absorbs, excretes). 3. Major tissue of glands (secrete a product). 4. One side exposed to the outside or an open space. 5. Tightly packed (lack blood vessels). 6. Reproduce quickly Cuboidal Stratified squamous Simple columnar Skin cell slide I. Body Tissues B. Connective Tissue 1. Cells more widely spaced than epithelial 2. Cells secrete an extracellular matrix 3. Matrix consists of fibers and ground substance (fluid to solid). 4. Functions are specific to the tissue they make. adipose Blood Cartilage Bone I. Body Tissues C. Muscle Tissue 1. Moves body parts by contraction of fibers 2. Three Types of Cells a) Skeletal Muscle (striated, voluntary) b) Smooth (involuntary) c) Cardiac (heart) Striated/voluntary muscle (skeletal muscle) Cardiac muscle (with intercalated discs) Smooth/involuntary muscle (intestinal walls) I. Body Tissues D. Nerve Tissue 1. Found in brain, spinal cord, and peripheral nerves. 2. Neuron a) Nerve cell b) Transmits impulses to other cells. 3. Neuroglial Cells a) Support and bind neurons. b) Carry on phagocytosis. Nerve cell illustration Nerve cell slide image II. Body Cavities A. B. C. D. E. Cranial Cavity- encases brain Spinal Cavity- surrounds spinal cord Thoracic Cavity- encloses heart, esophagus, lungs, trachea, bronchii Abdominal Cavity (abdominopelvic)encloses digestive, reproductive, and excretory organs Diaphragm- muscle that separates the thoracic and abdominal cavities III. Organ Systems A. Skeletal System 1. Bones, cartilage, tendons, ligaments 2. Functions a) Support b) Protective shields c) Attachments for muscles d) Produces blood cells e) Stores inorganic salts. III. Organ Systems B. Muscular System 1. Skeletal, cardiac, & smooth muscle 2. Moves body parts 3. Produces body heat 4. Moves blood III. Organ Systems C. Integumentary System 1. Skin, hair, nails, sweat glands, sebaceous glands (oil) 2. Protects underlying tissue 3. Regulates body temperature 4. Houses sensory receptors 5. Synthesizes various substances. III. Organ Systems D. Cardiovascular System 1. Heart, blood vessels, blood 2. Transports oxygen, carbon dioxide, nutrients, hormones, wastes. III. Organ Systems E. Respiratory System 1. Nasal cavity, pharynx, larynx, trachea, bronchi, lungs. 2. Carries air in and out of the body 3. Exchanges oxygen and carbon dioxide between air and blood. III. Organ Systems F. Immune System 1. Lymphatic vessels, lymph nodes, thymus, spleen, white blood cells. 2. Transports lymph from tissue to blood 3. Aids in defending against disease. III. Organ Systems G.Digestive System 1. Mouth, salivary glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small intestine, large intestine. 2. Stores and digests food 3. Converts food into forms that can pass through membranes 4. Eliminates materials not absorbed III. Organ Systems H. Excretory System 1. Kidneys, ureters, bladder, urethra, skin, lungs 2. Filters waste from the blood 3. Helps maintain water and electrolyte balance III. Organ Systems I. Nervous System 1. Brain, spinal cord, nerves, sense organs 2. Receives impulses from sensory parts 3. Interprets impulses 4. Acts on impulses by stimulating muscles or glands to respond. III. Organ Systems J. Endocrine System 1. Pituitary, thyroid, parathyroid, adrenal, pineal, thymus glands, pancreas, ovaries, testes. 2. Glands that secrete hormones which help regulate metabolism. III. Organ Systems K. Reproductive System 1. Male system a) Testes, seminiferous tubules, epididymis, vas deferens. b) Produce and maintain sperm 2. Female system a) ovaries, fallopian tubes, uterus, mammary glands. b) Produce and maintain ova and milk IV. Regulation and Homeostasis A. B. C. Body systems work together to maintain homeostasis in the organism Skeletal system can donate calcium ions for muscle contraction Kidneys regulate electrolytes and water balance in blood IV. Regulation and Homeostasis D. E. F. Cardiovascular and respiratory systems regulate body’s pH Integumentary system and cardiovascular system regulate body temperature Integumentary, endocrine, and immune system work to protect the body from infection TENDONS LIGAMENTS CARTILAGE