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Herlihy 1
Intro to Human Body
Question | Answer |
---|---|
Homeostasis | Homeo (same)stasis (staying) The body's ability to maintain a stable internal environment in response to a changing environment. |
Body levels of organization | atom, molecule, cell, tissue, organ, organ systems, human organism |
Anatomy | branch of science that studies the structure of the body; Greek-to dissect |
Physiology | branch of science that studies how the body works |
Pathophysiology | studies the consequences of improper functioning; how body works when diseased; what happens during a heart attack |
Major Organ Systems | Integumentary; Skeletal; Muscular; Nervous; Endocrine; Circulatory; Lymphatic; Immune; Respiratory; Digestive; Urinary; Reproductive |
Anatomical Position | Standing erect; face forward; arms at sides; toes and palms forward |
Superior and inferior | Superior = above; Inferior = below Head is superior to feet |
Anterior / Posterior | Anterior = front; Posterior = back Heart is anterior to the spinal cord, and posterior to the breastbone |
Ventral / Dorsal | Same as Anterior/Posterior Dorsal is back (dorsal fin of fish) |
Medial / Lateral | Divides right from left: Medial = toward midline; Lateral = away from midline. Ears are lateral to nose; hand is closer to lateral thigh than medial thigh |
Proximal / Distal | Proximal = structure nearer the point of attachment; Distal = point farther from attachment Wrist is distal to elbow Wrist is distal to elbow |
Superficial / Deep | Near surface or not. Skin is superficial to muscles; Bones are deep to skin. |
Central / Peripheral | Center = nearer center; Peripheral = away from center. Heart is central, blood vessels are peripherally. Brain and spinal cord are central nervous system, nerves are peripheral nervous system. |
Sagittal Plane | divided body into right and left |
Frontal Plane | divides body into anterior (ventral) and posterior (dorsal). Also coronal plane |
Transverse Plane | divides body horizontally - upper (superior) and lower (inferior). when a body or organ is cut horizontally or transversely it is called a cross section. |
Antecubital | front of elbow |
Brachial | arm |
Axillary | armpit |
Buccal | cheek area |
Inguinal | where thigh meets trunk - groin |
Femoral | thigh |
Patellar | front of knee |
Caudal | tailbone |
Deltoid | rounded area of shoulder closest to the upper arm |
Occipital | back of head |
Popliteal | back of knee |
2 Major cavities | Dorsal and Ventral. Doral is in back and divided into cranial and spinal (vertebral). Ventral divided into thoracic cavity and abdominopelvic cavity. |
Mediastinum | Divides the 2 compartments (pericardial and pleural) of the thoracic cavity containing the heart, esophagus, trachea, thymus gland, large blood vessels attached to heart |
Dorsal Cavity | contains cranial and spinal cavities |
Ventral Cavity | contains thoracic and abdominopelvic cavities divided by mediastinum |