Submitted by: Submitted by Wes127
Views: 10
Words: 1031
Pages: 5
Category: Science and Technology
Date Submitted: 11/30/2015 06:55 AM
1. (4 pts) Describe the metabolic process providing your energy while you were walking (at an
easy pace) before the bee stung you. Include which molecules are being consumed.
*The demand for ATP increases the demand met by mitochondria and rate of
oxygen consumption increases.skeletal muscles rely on aerobic metabolism of pyruvate
to generate ATP. pyruvate is provided by glycolysis. it uses glucose obtained from
stored glycogen reserves (AandP book pg.392)
2. (6 pts) Trace the sound of the bee from your outer ear to perception. (Include all focusing,
conduction, transduction, transmission and perception processes and structures)
External ear visible proportion of the ear collects and directs sound waves toward the
middle ear(pg.546).
External acoustic meatus passageway within the temporal bone(pg.546).
Middle ear or tympanic cavity, is an air filled chamber, separates external acoustic
meatus by the tympanic membrane. connected to pharynx by the auditory tube(pg.546).
Tympanic membrane or eardrum, thin semitransparent sheet, separates external ear
from middle ear(pg.546).
Auditory ossicles Three tiny bones connects the tympanic membrane with one of the
receptor complexes of the inner ear(pg.547).
1.) Malleus Attaches at three points to the interior surface of the tympanic
membrane(pg.547).
2.) Incus middle ossicle, attaches the malleus to the stapes(pg.547).
3.) Stapes bound to the edges of the oval window and opening in the bone that
surrounds the internal ear(pg.547).
Muscles of the ear:
Tensor tympani muscle when contracts, the malleus is pulled medially, shifting the
tympanic membrane and reducing the amount it can be vibrate in response to innervated
by motor fibers of sound. the mandibular branch of the trigeminal nerve(V)(Pg.547).
Stapedius muscle Innervated by the facial nerve(VII) inserts on stapes. contraction of the
stapedius pulls stapes, reducing movement of the stapes at the oval window(pg.547) ...