Module 2 - Anatomy and Physiology Flashcards
(107 cards)
Plasma membrane
Separates the internal components of the cell from the surrounding environment
Essential to the life of the cell
Cytoplasm
Contains many suspended organelles, or cell structures
Medium for chemical reactions
Nucleus
Control center of the cell
Regulates cell activity
Houses genetic material
Nuclear membrane
Protects the nucleus, allowing in only specific materials
Nucleolus
Forms RNA and ribosomes
Mitochondria
Convert nutrients into energy for use by the cell/body; create adenosine triphosphate (ATP)
Ribosomes
Protein synthesis for both internal and external use
Endoplasmic reticulum
Transports materials throughout the cell
Golgi apparatus
Packages and releases materials secreted by the cell for external use
Forms lysosomes
Lysosomes
Digest waste materials including damaged materials found in the cell, old cell components, and materials entering the cell
Centrioles
Participate in cell reproduction through the distribution of DNA to new cells
Cilia
Aid in the movement of substances along the surface of the cell
Flagella
Move the cell itself, through a whip-like motion
five cavities and internal organs of human body
- Cranial cavity: Within thes skull; houses the meninges (brain)
- Spinal cavity: Traveling down the midline of the back and formed by the vertebrea, this contains the spinal cord
- Thoracic cavity: Within the chest; houses the lungs, heart, and major vessels
- Abdominal cavity: Within the abdomen; houses several major organs such as the stomach, liver, gallbladder, and intestines
- Pelvic cavity: houses the bladder and reproductive organs
What are the 9 quadrants of the abdomen?
- right/left hypochondriac region
- epi/hypo gastric region
- right/left lumbar region
- umbilical region
- right/left iliac region
Skin functions
- protection
- temperature regulation
- excretion
- sensation
- vitamin D production
Describe the layers of the skin
- Epidermis layer: Outermost layer of epithelial tissue, covers the external surface of the body
- Dermis layer: Thick layer beneath the epidermis that contains arteries, veins, nerves
- Subcutaneous layer: Loose, connective tissue composed of adipose tissue and lipocytes
Sebaceous (oil) glands
Produce sebum to keep skin and hair soft and prevent bacteria from growing on the skin
Sudoriferous (sweat) glands
Produce sweat to aid in cooling the body
Axial skeleton
The adult axial skeleton has 80 bones, including the skull, vertebrae, and ribs.
Appendicular skeleton
The adult appendicular skeleton has 126 bones, including arms, legs, and pelvic girdle.
Skeletal muscle
Responsible for body movement; also called voluntary muscle or striated muscle
Smooth muscle
Found within the walls of hollow organs and blood vessels and in the iris of the eye; also called involuntary muscle
Tendons
Ends of skeletal muscles that attach the muscle to a bone