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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 |