Anatomy True Statements About

Cells & tissues

* A human cell is made of organic an inorganic chemicals * A tissue is a group of similar cells that work together * The tissue that is specialized to contract is muscle tissue

Body Sections

* A transverse section involves a horizontal plane * A coronal section is the same as a frontal section * A midsagital section of the body would pass through the nose and the navel * Anterior and posterior parts of the body are obtained

ADH (Anti Diuretic Hormone) and Oxytocin

* ADH may also be called vasopessin because in large amounts it causes vasoconstriction * After birth oxytocin casues release of milk from the mamory glands * ADH causes the kidneys to reabsorb more water to increase urinary output * The stimulus of secretion of ADH is any decrease in body water

Homeostasis

* Changes outside the body often bring about changes inside the body * Maintaining Homeostasis is the same as maintaining good health

Height of a person

* Genes for height may be for enzymes involve in bone matrix formation * The absorption of calcium from food in the small intestine is facilitated by vitamin A * Vitamins C & D are important in the diet because they are a part of the bone matrix

Reproductive Hormones

* In women lutinizing hormone LH stimulates the release of a mature ovum on a ovarian folical * In women both FSH (folical stimulating hormone) and estrogen contribute to the growth and maturation of an ovarian folical * In men both FSH and testosterone contribute to the growth and maturation of sperm

Integumentary System

* It is important to seperate the internal environment from the external environment * The entire dermis is living tissue * The skin is an organ because it is made up of different kinds of tissue

Tendons

* Made up of fibrous connective tissue * Attach muscle to bone * Many are rope like but some are flat * The attaching tendon at a muscles origin helps provide stability * The attaching tendon at a muscles inversion is on the bone to be moved

Melanocytes & Melanin

* Melanin gives color to the eyes as well as the skin * Melanocycte that becomes malignant may give rise to melanoma

Cutaneous Senses

* Most of the receptors are in the dermis and subcatanious tissue * The more receptors per square inch the more sensitive the skin is * These senses provide information about the external environment * Receptors are the most numerous in the skin of the palms and the feet

Blood Plasma

* Plasma is a solvent for some nutrients and waste products

Glands of the Skin

* Sebum prevents drying of the skin * The secretion of apocrine glands has an individuals sent * Sabeous glands open into hair follicles especially in the face * Apocrine glands become more active in stressful situations

Sensory pathways

* Sensory neurons carry impulses from receptors to the central nervous system * Sensory receptors are different in that each type detects a specific type of change * Sensory receptors are similar in that they all inteperate impulses the same way * Most of the sensory areas are in the cerebral cortex

Chemical Symbols

* Sodium (Na) * Sulfur (S) * Zinc (Z) * Chlorine (Cl)

Nervous system

* The CNS (central nervous system) consists of the brain and the spinal cord * Movement and sensation are functions of this system * The nervous system regulates body functions by means of elctrochemical impulses * The PNS (peripheral nervous system) consists of cranial nerves and spinal nerves

Bone Tissue

* The blood vessels in compact bone come from the periosteum

Bacteria

* The chemical structure of the cell wall of bacteria is the basis for the gran stain * bacterial flagella permit attachments to a host cell * Anaerobic bacteria do not reproduce in the absence of oxygen

Arteries & veins

* The endothelium of both arteries and veins contributes to the prevention of abnormal clotting

Directional terms of the body in anatomical position

* The foot is the most inferior part of the body * The forehead is on the ventral side of the body * The knee is proximal to the ankle * The truck of the body is medial to the arms

Bones of the skull

* The frontal bone forms the forehead * The temporal bone contains the structure of the pathway of hearing

Movement

* The respiratory system brings oxygen into the body * The circulatory system removes CO2 from the muscles * The nervous system provides impulses to stimulate muscle contraction * voluntary movement, is completely dependent on nerve impulses

Vitamin D

* The stimulus of cutaneous production of vitamin D is the ultra violet rays of the sun * Vitamin D contributes to efficient immune responses

Quadrants of the abdomen

* The use of quadrants makes description of organ location simpler * The imaginary lines that create the quadrants cross at the navel * The liver is not found in the upper left quadrant * Parts of the small intestine are found in all 4 quadrants

Upper respiratory tract

*The tonsils are the lymphatic tissue of the pharynx * The nasal mucosa warms and moistens inhaled air * The laryngopharynx opens into the pharynx and the esophagus * The synthesis reactions phospholipids are made from fatty acids and proteins are made of amino acids