ATI TEAS Flashcards
The study of the functions of the human body
Physiology
The study of the parts and structures of the human body
Anatomy
Anatomical plane that divides the body into dorsal and ventral parts
Coronal plane
Anatomical plane that divides the body into superior and inferior sections
Transverse plane
Anatomical plane that divides the body into right and left sections
Sagittal plane
Vertical cut that is off-center that separates the left of the specimen from the right in unequal portions
Parasagittal plane
Toward the head end of the body
Superior
Away from the head of the body
Inferior
Back of the body
Dorsal
Front of the body
Ventral
Front
Anterior
Back
Posterior
Structure that is closer
Proximal
Structure that is further away
Distal
The study of the body’s cells
Cytology
The study of the body’s tissues
Histology
The covering that envelopes the cell and acts as a covering
Cell membrane
Gelatinous liquid that fills the inside of a cell
Cytoplasm
Contains chromosomes and is where DNA/RNA are synthezised and replaced
Cell nucleus
Molecule that carries genetic information for the development and functioning of an organism
DNA
Molecule that is present in the majority of living organisms and viruses
RNA
Deoxyribonucleic acid
DNA
Ribonucleic acid
RNA
Powerhouses of the cell, their main function is to generate the energy necessary to power cells
Mitochondria
Dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism
Endoplasmatic recticulum
Subcellular organelle that is found in nearly all types of eukaryotic cells and that is responsible for the digestion of macromolecules, old cell parts, and microorganisms
Lysosome
Group of organic compounds which include fats, waxes, sterols, fat-soluble vitamins, monoglycerides, diglycerides, phospholipids, and others
Lipid
Cellular machinery responsible for making proteins
Ribosome
Responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations
Golgi apparatus
Cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells
Meiosis
cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Mitosis
Cells make up
Tissues
Tissues make up
Organs
Organs make up
Organ systems
Highly cellular tissue that overlies body surfaces, lines cavities, and forms glands
Epithelial tissue
Supports and binds other tissues of the body
Connective tissue
Found around every blood vessel and helps to keep the vessel in place
Loose connective tissue
Tissue that collects and stores fat in the form of triglycerides, for energy metabolism
Adipose tissue
Consist of flexible muscle fibers that range from less than half an inch to just over three inches in diameter
Skeletal muscle tissue
Fibers are located in walls of hollow visceral organs (such as the liver, pancreas, and intestines), except the heart
Smooth muscle tissue
Makes up the thick middle layer of the heart and only exists in the heart
Cardiac muscle tissue
A neuron, neurone, or nerve cell is an electrically excitable cell that fires electric signals called action potentials across a neural network
Nervous tissue
Resilient and smooth type of connective tissue, usually covered by a tough and fibrous membrane called perichondrium
Cartilage
Includes the nose or nostrils, nasal cavity, mouth, throat (pharynx), and voice box (larynx)
Upper respiratory system
Includes the windpipe (trachea) and within the lungs, the bronchi, bronchioles, and alveoli
Lower respiratory tract
Two large tubes that carry air from your windpipe to your lungs
Bronchi
Tubes in the lungs which branch off from the larger bronchi that enter each lung
Bronchioles
Tiny air sacs of the lungs which allow for rapid gaseous exchange
Alveoli
The organs and other parts of your body involved in breathing, when you exchange oxygen and carbon dioxide
Respiratory system
A flap of tissue that sits beneath the tongue at the back of the throat
Epiglottis
Lower than normal heart rate, heart rate fewer than 60 beats a minute
Bradycardia
Higher than normal heat rate, heart rate over 100 beats a minute
Tachycardia
The heart muscle contracts and pumps blood from the chambers into the arteries
Systole
The heart muscle relaxes and allows the chambers to fill with blood
Diastole
Top number and refers to the force the heart exerts on the walls of the arteries each time it beats
Systolic blood pressure
Bottom number and refers to the amount of pressure in the arteries while the heart is resting in between heartbeats
Diastolic blood pressure
The outter most layer of the heart, the membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane
Pericardium
Middle layer of the heart, found in the walls of all four chambers of the heart, though it is thicker in the ventricles and thinner in the atria
Myocardium
Innermost layer of the heart, the thin, smooth membrane which lines the inside of the chambers of the heart and forms the surface of the valves
Endocardium
Specialized cardiac muscle cells that conduct electrical impulses that allow coordinated contraction of cardiac muscle, allows heart to make nerve impulses
Purkinje fibers
What are the upper chambers of the heart
Right atrium and left atrium, receiving blood into the heart
What are the lower chambers of the heart
Right and left ventricles, pumping blood from the heart
Separates the left atrium from the left ventricle
Mitral valve
Separates the left ventricle from the aorta
Aortic valve