Unit 1 Flashcards
agonist
muscle or muscle group that is the prime mover for a joint action
anatomical position
the universally accepted reference position to describe regions and spatial relationships of the human body and to make reference to body positions
antagonist
muscle or muscle group that opposes the action of the prime movers
appendicular skeleton
all of the bones that are found in the limbs of the body
atrioventricular valves (AV)
separate the atria from the ventricles. the right AV has 3 leaflets called tricuspid valve. the left AV has 2 leaflets called the bicuspid valve.
auscultation
the act of listening to sounds of the body
a practitioner can use a stethoscope to assess blood pressure, heart rate and heart and lung sounds
contractile proteins
specialized proteins found within muscle cells that interact with one another to cause muscle force production
joints
the articulations between bones, typically classified according to structure as being fibrous, cartilaginous, or synovial.
motor unit
a single somatic motor neuron and the group of muscle fibers innervated by it
muscle fiber architecture
the orientation of the muscle fibers to the longitudinal axis of the muscle.
planes of motion
orthogonal planes the divide the human body and can be used to describe various body movements
regulatory proteins
specialized proteins found within muscle cells that block the binding of the contractile proteins to one another and thus keep the muscle in a relaxed state
respiratory membrane
the membrane formed by the walls of the alveoli and capillaries as the come in contact with one another in the lungs.
synergist
muscle or muscle group that assists the agonist in performing a joint action
ventilation
the act of breathing in (inhalation) and out (exhalation) so that air can enter the alveoli to allow oxygen and carbon dioxide to exchange
major regulatory proteins
troponin
tropomyosin
where does diffusion of oxygen and carbon dioxide occur in the lungs
respiratory membrane
inhalation
breathing in
exhalation
breathing out
sagittal
right and left
frontal
anterior and posterior
transverse
superior and inferior
anterior
front of body
deep
below the surface and not relatively close to surface