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Anatomy
definitions
| Question | Answer |
|---|---|
| What is Homeostasis? | the body’s natural tendency to maintain a relatively stable internal environment. |
| What is the integumentary system, made up of? | skin, hair, and nails. |
| What is the nervous system, made up of and what does it do? | brain, nerves, spinal cord and sensory organs, and it reacts to stimuli in the environment and signals other systems when actions are needed to bring the body back into balance. |
| What does the endocrine system do? | produces hormones and other regulatory substances, plays a key role in maintaining balance among chemical messengers within the body |
| Transverse plane | (also called the horizontal plane) divides the body into top and bottom. In anatomical position, transverse planes are parallel to the ground. |
| Coronal plane | a vertical plane that divides the body into the front and back sections. If you do a “belly flop” into the water, you sink into the water via the coronal planes. |
| Sagittal plane | divides the body into left and right sections with a vertical plane that passes from the front to the rear. |
| Superior | a position located above or higher than another structure in the body, or closer to the head. It is also known as the cranial or head-ward direction |
| inferior | a position located below or lower than another part of the body. It is a directional term used to compare the relative location of body structures, meaning closer to the feet or away from the head |
| Anterior | situated toward or at the front of the body or a body part. It is also known as ventral. |
| Posterior | the back side of the body or a body part. It is the opposite of anterior, which means the front. |
| Laterally | moving or positioned away from the middle (midline) of the body and toward the side. It is the opposite of medially, which means moving toward the center |
| medially | a body part is located toward the middle or center line of the body. It is the opposite of lateral, which means farther from the middle. |
| Intermediate | a body part is located between two other structures, specifically positioned between a more medial (inner/middle) structure and a more lateral (outer/side) structure |
| proximal | closer to the center of the body or the point where a limb attaches. |
| Distal | a body part is located farther away from the center of the body, the trunk, or the point where a limb attaches. It is the exact opposite of proximal, which means closer to the attachment point |
| superficial | directional terms used to describe the relative depth or location of body structures toward the surface or away from the surface of the body. |
| Internal (deep) | inside or closer to the center of an organ, body cavity, or structure |
| Cartilage | cushions the spaces between the bones, allowing for smooth movement. |
| Tendons | connect muscles to bones |