Comprehensive Anatomy, Physiology, and Homeostatic Mechanisms Study Guide

Spermatozoon

The male reproductive gamete.

Ovum

The female reproductive gamete.

Integumentary System

The body's primary outer barrier that protects internal structures from mechanical injury, pathogen entry, and fluid loss.

Sagittal Plane

A vertical plane running directly along or parallel to the midline, dividing the body longitudinally into left and right sides.

Transverse Plane

A horizontal plane passing across the middle of the body, dividing it into superior and inferior sections.

Superior

Refers to structures situated closer to the head or upper part of the body.

Inferior

Refers to structures situated closer to the feet or lower portion of the body.

Proximal

A position closer to the origin or point of attachment to the central trunk of the body.

Distal

A position situated farther away from the origin or point of attachment to the central trunk of the body.

Mediastinum

The central anatomical space within the thoracic cavity located between the lungs, housing the heart and associated major blood vessels.

Appendicitis

Inflammation of the vermiform appendix, typically identified by localized right lower quadrant abdominal pain.

Homeostasis

An overall dynamic state of internal equilibrium (state of being) maintained by physiological feedback loops.