Heart
The earliest organ to form and begin function within the developing human
Gases move from areas of ___________ partial pressures to areas of _____________ partial pressures.
What is high to low?
Term used to describe a muscle that moves a limb away from the body
What is an abductor?
Scientific word for chewing
What is mastication?
part of a neuron that transmits an electrical signal to a target cell
What is an axon?
Lifesaving technique that can push some blood throughout body after the heart has stopped working
What is CPR? or cardiopulmonary resuscitation
Molecule in blood that is responsible for transporting oxygen
What is hemoglobin?
rectus abdominis, interior oblique, exterior oblique
What are abdominal muscles?
structure whos primary function is absorption of water and compacting feces for elimination
What are the large intestines?
Neurotransmitter released at the neuromuscular junction
What is acetylcholine?
Membrane covering of the heart including the makeup of the surrounding cavity
What is the pericardium? or pericardial sac
tiny air sacs of the lungs that allow for gas exchange
What are alveoli?
Element critical for directly triggering contraction
What is calcium?
Cells of the stomach that secrete digestive enzymes
What are chief cells?
The ion that enters a neuron causing depolarization of the cell membrane
What is sodium?
chamber initially receives blood from the systemic circuit (superior and inferior vena cava)
What is the right atrium?
The pleura that surrounds the lungs consist of these two layers
What are the visceral and parietal?
These structures in cardiac muscles help distinguish them from skeletal muscles
What are intercalated discs?
Small projections of the small intestine whose function in absorption of nutrients
What are villi?
portion of the forebrain that is the master control center for homeostasis
What is hypothalamus?
Portion of the heart that divides into left and right halves
What is the septum?
Insufficient amounts of this will cause infants to have a difficult time inflating lungs after birth
What is pulmonary surfactant?
Thin and thick filaments are organized into functional units called
What are sarcomeres?
involuntary contractions that create a wavelike motion of a canal to push contents through
What is peristalsis?
a group of subcortical structures found deep within the white matter of the brain, functions in motor learning, emotions, and executive functions and behaviors
What is the basal nuclei? basal ganglia?