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Intro Anatomy Terms
Introduction to the Structure and Function of the Body
| Question | Answer |
|---|---|
| abdominopelvic quadrants | health professionals divide the abdomen (through the navel) into four areas to help locate specific organs |
| The Four Quadrants of the Abdominopelvic Cavity | Right upper, Left upper, Right lower, Left lower |
| abdominopelvic regions | anatomists have divided the abdomen into nine regions to identify the location of organs |
| The Nine Regions of the Abdominopelvic Cavity | Right hypochondriac region, Epigastric region, Left hypochondriac region, Right lumbar region, Umbilical region, Left lumbar region, Right iliac (inguinal) region, Hypogastric region, Left iliac (inguinal) region |
| anatomical position | the reference position for the body, which gives meaning to directional terms |
| anatomy | the study of the structure of an organism and the relationships of its parts |
| atrophy | wasting away of tissue; decrease in size of a part; sometimes referred to as disuse atrophy |
| abdominal cavity | the cavity containing the abdominal organs |
| cranial cavity | space inside the skull that contains the brain |
| pelvic cavity | the lower portion of the ventral cavity; the distal portion of the abdominopelvic cavity |
| pleural cavity | a subdivision of the thorax |
| spinal cavity | the space inside the spinal column through which the spinal cord passes |
| thoracic cavity | the cavity containing the trachea, heart and lungs |
| superior | higher, opposite of inferior |
| inferior | lower; opposite of superior |
| control center | brain |
| anterior | front or ventral; opposite of posterior or dorsal |
| posterior | located behind; opposite of anterior |
| ventral | of or near the belly; in humans, front or anterior; opposite of dorsal or posterior |
| dorsal | referring to the back; opposite of ventral; in humans, the posterior is dorsal |
| medial | of or toward the middle; opposite of lateral |
| lateral | of or toward the side; opposite of medial |
| proximal | next or nearest; located nearest the center of the body or the point of attachment of a structure |
| distal | toward the end of a structure; opposite of proximal |
| superficial | near the body surface |
| deep | farther away from the body's surface |
| effector (loop) | responding organ; for example, voluntary and involuntary muscle, the heart, and glands |
| feedback (control loop) | a highly complex and integrated communication control network, classified as negative or positive; |
| homeostasis | relative uniformity of the normal body's internal environment |
| mediastinum | a subdivision in the mid-portion of the thoracic cavity |
| negative feedback (loops) | most important and numerous homeostatic control mechanisms |
| chemical level of organization | atoms and molecules |
| cellular level of organization | cells are considered to be the smallest "living" units of structure and function in our body |
| tissue | group of similar cells that perform a common function |
| organ | group of several tissue types that performs a special function |
| system | group of organs arranged so that the group can perform a more complex function than any one organ can perform alone |
| physiology | the study of body function |
| sagittal | longitudinal; like an arrow |
| midsagittal | a cut or plane that divides the body or any of its parts into two equal halves |
| frontal | lengthwise plane running from side to side, dividing the body into anterior and posterior portions |
| transverse | a horizontal or crosswise plane; divides the body or any of its parts into upper and lower portions |
| positive feedback (loops) | stimulatory; amplify or reinforce the change that is occurring |
| prone | used to describe the body lying in a horizontal position facing downward |
| sensor | detects change and sends information to the control center |
| supine | used to describe the body lying in a horizontal position facing upward |
Created by:
NurseKel
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