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AnatomyFinalBIO203
Review for Prof. Schaeffer's Final
Question | Answer |
---|---|
The body is divided into how many systems? | 11 Systems |
Integumentary System - major organs and functions | Skin, Hair, Sweat Glands, Nails. Protects against environmental changes, helps regulate body temp, provides sensory information. |
Skeletal System - major organs and functions | Bones, Cartilages, Associated Ligaments, & Bone Marrow. Provides support and protection, stores calcium & other minerals, forms blood cells. |
Muscular System - major organs and functions | Skeletal muscles & Associated tendons. Provides movement, provides protection & support, generates heat that maintains body temp. |
Nervous System - major organs and functions | Brain, Spinal Cord, Peripheral Nerves, & Sense Organs. Directs immediate responses to stimuli, coordinates or moderates activities of other organ systems, provides and interprets sensory information about external conditions. |
Endocrine System - major organs and functions | Pituitary gland, Thyroid gland, Pancreas, Adrenal glands, & Gonads. Adjusts metabolic activity and energy use by the body, Controls structural and functional changes during development, & directs long-term changes in the activities of other organ systems. |
Cardiovascular System - major organs and functions | Heart, Blood, & Blood vessels. Distributes blood cells, water, and dissolved materials, including nutrients, waste products, oxygen, and carbon dioxide. |
Lymphatic System - major organs and functions | Spleen, Thymus, Lymphatic vessels, Lymph nodes, & Tonsils. Defends against infection and disease, & returns tissue fluids to the bloodstream. |
Respiratory System - major organs and functions | Nasal cavities, Sinuses, Larynx, Trachea, Bronchi, Lungs, & Alveoli. Delivers air to alveoli, provides oxygen to bloodstream, removes carbon dioxide from bloodstream, & produces sounds for communication. |
Digestive System - major organs and functions | Teeth, Tongue, Pharynx, Esophagus, Stomach, Small intestine, Large intestine, Liver, Gallbladder, & Pancreas. Processes and digests food, absorbs and conserves water, absorbs nutrients, & stores energy reserves. |
Urinary System - major organs and functions | Kidneys, Ureters, Urinary bladder, & Urethra. Excretes waste products from the blood, controls water balance by regulating volume of urine produced, stores urine prior to voluntary elimination, & regulates blood ion concentrations and pH. |
Male Reproductive System - major organs and functions | Testes, Epididymis, Ductus deferens, Seminal vesicles, Prostate glands, Penis, & Scrotum. Procudes male sex cells (sperm) and hormones. |
Female Reproductive System - major organs and functions | Ovaries, Uterine tubes, Uterus, Vagina, Labia, Clitoris, & Mammary glands. Produces female sex cells (oocytes) and hormones, supports developing embryo from conception to delivery, & provides milk to nourish newborn infant. |
What is negative feedback? | The body's corrective mechanism involving an action that directly opposes a variation from normal limits. Brings body back to homeostasis. Ex.thermostat, insulin, CO2. |
What is positive feedback? | A stimulus that produces a response that exaggerates or enhances the change in the original conditions. Moves body away from homeostasis. Ex. Blood clotting & uterine contractions. |
Name the body cavities. | Dorsal Body Cavity - cranial cavity & vertebral cavity. Ventral Body Cavity - abdominopelvic cavity - abdominal cavity & pelvic cavity. |
What is the difference between visceral and parietal serosa? | Visceral serosa covers the internal organs. Parietal serosa lines internal body walls. |
What are the four main types of tissue? | Epithelium, Connective, Muscular, & Nervous. |
Characteristics of Epithelial Tissue | Covers body surface, lines hollow things, & forms glands. Avascular but innervated. Rapidly replaces lost cells. Provides sensation, physical protection, and controls permeability. |
Classes of Epithelia | Simple - single layer of cells. Stratified - multiple layers of cells. Squamous - flat shaped. Cuboidal - square shaped. Columnar - rectangular shaped. |
Simple Squamous Epithelia | Highly adapted for diffusion, osmosis, & filtration. Found in alveoli of lungs and the kidneys. |
Simple Cuboidal Epithelia | Responsible for secretion & absorption. Found in outer covering of ovaries & smaller ducts of some glands (like the thyroid). |
Simple Columnar Epithelia | Provides protection, secretion, & absorption. Found in the GI tract. Some have cilia, brush borders, & goblet cells. |
Stratified Squamous Epithelia | 2 Types: Keratinized - waterproof protection, reduces friction, & protects against bacterial infection. Ex. Epidermis. Non-keratinized - mouth, tongue, & vagina.Tra |
Transitional Epithelia | Permits expansion and recoil after stretching. Basal cells are cuboidal & surface cells are dome shaped. Found in the bladder. |
Psuedostratified Columnar Epithelia | Function in secretion & propulsion of mucus. Found in Eustachian tubes and Trachea (ciliated). |
Endocrine Gland | Have no ducts and produce hormones. Hormones are then secreted directly into bloodstream. |
Exocrine Gland | Secrete their products thru a duct onto the body surface or into a hollow organ. Ex. sweat glands, salivary glands, digestive enzymes, milk, etc. |
Merocrine Secretion | Produced in Golgi apparatus & are released by vesicles (exocytosis). Ex. sweat glands |
Apocrine Secretion | Produced in Golgi apparatus & are released by shedding cytoplasm. Ex. mammary gland |
Holocrine Secretion | Released by cells bursting, killing gland cells. Gland cells are replaced by stem cells. Ex. sebaceous gland |
Connective Tissue Characteristics | Most abundant tissue in the body. Connect epithelium to the rest of the body. Highly vascular except for cartilage & bone. Has mesenchyme (stem cell tissue) as their common tissue of origin. |