BIO 201 EXAM 2 RIO SALADO 2026/27
QUESTIONS AND ANSWERS 100% CORRECT
What do all vertebrae possess? - Answer-transverse process and vertebral
foramen
What is the longest and strongest bone of the face? - Answer-Mandible
The temporal bone riddled with sinuses - Answer-Mastoid Process
Smooth muscle - Answer-walls of hallow organs, uninucleate, no striations, no
presence of myofibrils of t tubules
Organization of skeletal muscles from microscopic to gross anatomy - Answer-
Myofilaments create a sarcomere. Bundled together, myofilaments form
myofibrils, which bundle together to form a muscle fiber (or muscle cell). Muscle
fibers together form a fascicle, which are further bundled together to form a full
muscle.
Thick filaments - Answer-myosin heads that contain actin binding sites
Thin filaments - Answer-two strands of actin subunits
,resting membrane potential - Answer-90 mV
wave summation - Answer-the situation in which contractions become stronger
due to rapid stimulation rate. partial relaxation occurs between contractions
multiple motor unit summation - Answer-how a smooth increase in muscle force
is produced
treppe - Answer-the pheromone in which the contraction strength of a muscle
increases, due to increased enzyme efficiency during the warm-up
tetanus - Answer-continued sustained smooth contraction due to rapid
stimulation
maximal stimulus - Answer-the stimulus above which no stronger contraction can
be excited, because all motor units are firing in the muscle
Acetylcholine - Answer-A neurotransmitter substance released at motor end
plates by the axonal endings
Aerobic respiration - Answer-A metabolic pathway that provides for a large
amount of ATP per glucose because oxygen is used. Products are water and
carbon dioxide and ATP.
acetylcholinesterase - Answer-Destroys ACh
, calcium ions - Answer-Serves as the actual "trigger" for muscle contraction by
removing the inhibition of the troponin molecules. Normally stored in the
terminal cisternae
What is a Colle's Fracture? - Answer-A break in the distal end of the radius
Where is the location of the center of gravity of the body? - Answer-it is 1 cm
posterior to the sacral promontory
Thoracic vertebrae T2 through T8 differ from the others in that? - Answer-they
have superior and inferior demifacets
The antebrachium is composed of which two bones? - Answer-the radius and the
ulna
The short bone that attaches to the third metacarpal is the - Answer-capitate
The bone in direct contact with the first metatarsal (big toe) is the - Answer-
medial cuneiform
Why are the paranasal sinuses at greater risk for infection? - Answer-their location
adjacent to the middle ear cavity often creates a high risk for infection
QUESTIONS AND ANSWERS 100% CORRECT
What do all vertebrae possess? - Answer-transverse process and vertebral
foramen
What is the longest and strongest bone of the face? - Answer-Mandible
The temporal bone riddled with sinuses - Answer-Mastoid Process
Smooth muscle - Answer-walls of hallow organs, uninucleate, no striations, no
presence of myofibrils of t tubules
Organization of skeletal muscles from microscopic to gross anatomy - Answer-
Myofilaments create a sarcomere. Bundled together, myofilaments form
myofibrils, which bundle together to form a muscle fiber (or muscle cell). Muscle
fibers together form a fascicle, which are further bundled together to form a full
muscle.
Thick filaments - Answer-myosin heads that contain actin binding sites
Thin filaments - Answer-two strands of actin subunits
,resting membrane potential - Answer-90 mV
wave summation - Answer-the situation in which contractions become stronger
due to rapid stimulation rate. partial relaxation occurs between contractions
multiple motor unit summation - Answer-how a smooth increase in muscle force
is produced
treppe - Answer-the pheromone in which the contraction strength of a muscle
increases, due to increased enzyme efficiency during the warm-up
tetanus - Answer-continued sustained smooth contraction due to rapid
stimulation
maximal stimulus - Answer-the stimulus above which no stronger contraction can
be excited, because all motor units are firing in the muscle
Acetylcholine - Answer-A neurotransmitter substance released at motor end
plates by the axonal endings
Aerobic respiration - Answer-A metabolic pathway that provides for a large
amount of ATP per glucose because oxygen is used. Products are water and
carbon dioxide and ATP.
acetylcholinesterase - Answer-Destroys ACh
, calcium ions - Answer-Serves as the actual "trigger" for muscle contraction by
removing the inhibition of the troponin molecules. Normally stored in the
terminal cisternae
What is a Colle's Fracture? - Answer-A break in the distal end of the radius
Where is the location of the center of gravity of the body? - Answer-it is 1 cm
posterior to the sacral promontory
Thoracic vertebrae T2 through T8 differ from the others in that? - Answer-they
have superior and inferior demifacets
The antebrachium is composed of which two bones? - Answer-the radius and the
ulna
The short bone that attaches to the third metacarpal is the - Answer-capitate
The bone in direct contact with the first metatarsal (big toe) is the - Answer-
medial cuneiform
Why are the paranasal sinuses at greater risk for infection? - Answer-their location
adjacent to the middle ear cavity often creates a high risk for infection
