Chapter 2: Terms Pertaining to the Body as a Whole Flashcards
Structural Organization of the Body
Cells
Tissues
Organs
Systems
Cells
The fundamental unit of all living things.
Major parts of a cell include:
Chromosomes
Nucleus
Cell Membrane
Cytoplasm
Mitochondria
Endoplasmic reticulum
Metabolism
Anabolism + Catabolism
All of the chemical reactions that are taking place within our body.
Anabolism
The building process.
Catabolism
The break down process.
Cell Membrane
The barrier that divides and protects what’s inside of the cell.
Chromosomes
Contain our DNA or our genetic information.
Cytoplasm
Providing the medium to hold or to suspend cytoplasmic organelles.
DNA
DNA makes up our genetic composition.
Cells
Cells are specialized to carry out individual functions.
-Epithelial cell (protective barrier) (skin, digestive tract, and urinary system)
-Fat cell
-Nerve cell
-Muscle cell (involved in locomotion)
Tissues
-Epithelial tissue
-Muscle tissue
-Connective tissue
-Nerve tissue
Organs
Different types of tissue combine to form an organ.
Systems
Groups of organs working together to perform complex functions.
Adipose Tissue
Fat tissue
Cartilage
Bony
Histologist
Specialist in the study of tissues.
Larynx
Produces voice and contains the vocal cords.
Pharynx
Throat
Pituitary gland
Deep inside the brain
Thyroid gland
In our neck or in our upper chest area.
Trachea
Windpipe
Ureter and Urethra
Making up a part of the urinary system.
Uterus
Part of the female reproductive system.
Viscera
Internal organs are collectively known as viscera.
Cranial Cavity
Brain
Thoracic Cavity
Lungs, heart, esophagus, trachea, bronchial tubes, thymus gland, aorta
Abdominal Cavity
Stomach, small and large intestines, spleen, pancreas, liver, gallbladder
Pelvic Cavity
Portions of the small and large intestines, bladder, rectum, urethra, ureters; uterus and vagina in female.
Spinal Cavity
Nerves of the spinal cord.
Body Cavities
Body cavities are the spaces within the body that contain internal organs (viscera).
Diaphragm
Muscle that separates the thorax from the abdomen.
Dorsal
Posterior
Ventral
Anterior, front
Mediastinum
Central cavity within the thorax.
Peritoneum
Cavity that is contained within the abdominal cavity.
Pluera
Double layered membrane structure surrounding the lungs on each side.