Part 2 Flashcards
Tympanic membrane
Pick up small vibrations and passes them through the small bones
Eustachian tube
Connects middle ear to pharynx
Cochlea
Processes sound and send the info down the auditory nerve.
Semicircular canal
Is balance.
Plasma
Fluid portion, contains water, protein, and electrolytes
Erythrocytes
Red blood cells. Carry oxygen via transport protein hemoglobin. Old rbcs are removed in the liver and spleen
Leukocytes
White blood cells. Function in immune system to protect the body against disease.
Blood circulation flow
Heart—artery—arterioles–capillary–venule–vein– back to heart
Thinnest/ most numerous blood vessels?
Capillaries
Largest blood vessels
Arteries
Oxygen poor blood goes from
The right ventricle to the pulmonary artery
Oxygen rich blood returns
From the lungs to the heart via the pulmonary vein. Enters left atrium and then goes to the left ventricle.
Oxygen rich blood returns
From the lungs to the right atrium- left ventricle pumps oxygen Rick blood to the body via the aorta.
Upper respiratory tract components
Nasal cavity, sinuses, middle ear, oral cavity, pharynx, and the larnyx.
Lower respiratory tract components
Trachea, bronchi and bronchioles, alveoli, diaphragm
Diaphragm
Marks boundary between the thoracic cavity and the abdominal cavity. Creates a vacuum in the thoracic cavity which sucks in air
Alveoli gas exchange
Takes place by diffusion. C2 diffuses out. 02 diffuses in
Steroidal hormones examples. Produced where?
Estrogen, testosterone, cortisol, aldosterone. Produced by testes, ovaries and adrenal glands
Endocrine glands products
Hypothalamus, pituitary glad, anterior lobe (tsh,fsh,lh) posterior lobe (oxytocin and adh) thyroid, para thyroid, adrenal gland, ovary, testes.
Lh and fsh control what?
Control ovulation, sperm production and menstrual cycles
Vasopressin
Raises blood pressure and make sure kidneys conserve water
Pancreas produces
Insulin and glucagon for glucose metabolism
Aldosterone
Regulates na/k balance
Amylase
Enzyme in saliva. Breaks down starch
