THE NERVOUS SYSTEM
The nervous system maintains
What is homeostasis
The heart has 4 chambers
What is 2 atria’s (upper chambers) 2 ventricles (lower chambers)
Define pulmonary respiration
What is pulmonary ventilation and pulmonary diffusion.
An increase in volume of intrathoracic cavity
What is increases lung volume, decreases intrapulmonic pressure, causes air to rush into the lungs (Inspiration)
Cerebrum cortex has 4 lobes
What is the Occipital, Temporal, Parietal, Frontal lobes
Blood flow enters…
What is the right atrium from superior and inferior vena cava
Define alveoli
What is a sac-like structure by capillaries surrounded by capillaries where gas exchange takes place.
Receives impulses and sends them to the cell body
What is a dendrite
Sympathetic Nervous System stimulates
What is systems related to survival and stress (AKA: fight-or-flight)
Cardiovascular system primarily functions
What is deliver essential substances to tissue and remove metabolic by-products from tissue.
Functions of the respiratory system
What is conducts air into/out of lungs, exchanges gases between air and blood, humidifies air, warms air, filters air.
QRS complex corresponds to
What is ventricular depolarization
What is actions and responses to external environment
Systolic blood pressure vs Diastolic blood pressure
What is highest pressure occurring during systole.
What is lowest pressure during diastole
Movement of air follows the pathway
What is nostrils, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli
Movement of air into and out of the lungs or breathing
What is pulmonary ventilation
Parasympathetic Nervous System helps
What is maintain the body or resume normal resting function. (AKA: rest and digest)
Cardiac wall thickness
What is the thicker the wall of cardiac chamber, the greater the force to eject blood.
Levels of respiration include
What is pulmonary ventilation, pulmonary diffusion, gas transport, capillary gas exchange.
Define Nodes of Ranvier
What is small gaps in myelin sheath to allow saltatory conduction along the axon