Lab 2 Flashcards
What channnel does the pulse traducer plug into the iWork TA box?
A5
Simple nervous reflex arc
- Receptor that identifies the stimulus
- Afferent neuron carries sensory info to integration center
- Efferent neuron transmits motor info to an effector cell
- Effector cells goves response to initial stimulus
What is the integration center for spinal reflexes?
spinal cord
monosynaptic?
only involves two neurons and afferent neuron that synapses with effector neuron in spinal cord
stroop effect
- impact of a stimulus interference with the task being performed, it impacts completing the task effectively
What reflex arc is shorter according to our lab?
auditory relex arc
What had the shortest reaction time?
- simple
- prompted
- predictble
- predicatble
Patellar stretch is
Ipsilateral
Ipsilateral
- response is on same side of the body
Corneal reflex response is
- response is bilateral
Cilispinal reflex
Ipsilateral
- when right side of neck is stimulated y
Patellar stretch reflex is what kind of synapse?
monosynaptic
Reciprocal inhibition
multisynaptic
What neuron controls the motor cortex?
Upper motor nueron
What neuron controls the alpha neurom
Lower motor neuron
What neuron controls the gamma motor neuorn
Lower motor neuron
What happens when the alpha nuerons are damaged?
Flaccid paralysis, when alpha nuerons are damaged they cannot be stimulated and lose tone
What happens if the motor cortex is damaged?
Spastic paralysis would happen. the muscles under the control of motor neurons couldn’t function and perform movement directed by cerebral motor cortex
How else can somatic reflex arcs be categorized
- ipsilateral
- contralateral
- consensual
- bilateral
What do alpha motor neurons do?
they stimulate the extrafusal fibers of the skeletal muscle
biceps brachii tendon reflex
- biceps brachii contract and triceps are inhibited (antagonists)
- ipsilateral
Patellar reflex
- quadriceps femoris msucle are contracted and biceps femoris muscles were inhibited and they are ipsilateral
Achilles tendon reflex
- Gastrochemus muscle was stimulated and thats what made my toes contract
- msucles that are responsible for dorsiflexion were inhibited
- ipsilateral
Plantar reflex and babinski sign- normal
- adduction and plantar of the toes
Plantar reflex and babinski sign- abnormal
-this would be Babinski sign so great tie would extend and the rest would fan out
Cranial Nerve I
Olfactory
S or M or B
- Olfactory nerve
- sensory function: smell
Cranial Nerve II
S or M or B?
Optic
sensory
Cranial Nerve II sensory
function
Optic
- vision
- accommodation reflex
- pupillary light reflex
Cranail III
S or M or B?
Oculmotor
motor
Cranial nerve III motor function
Oculomotor
Oculomotor: motor: Iris: pupillary light reflex Ciliary body: accommodation reflex Upper eyelid: Extraocular eye muscles: superior rectus medial rectus imferior rectus inferior obique
Cranial never IV
S or M or B
Trochlear
M
Cranial nerve IV motor?
Trochlear
Extraocular eye musle
Lateral Rectus
Cranial V
S or M or B
Trigeminal
B
Cranial V
Sensory
Trigeminal
Facial sensations:
- ophthalmic branch
- maxillary branch
- mandibular branch
Cranial VI
S or M or B
Abducens
Motor
Cranial VI Motor function
Abducens
Extraocular eye muscle :
Lateral Rectus
Cranial VII
S, M ,or B
Facial
B
Cranial VII sensory
Facial
soft palate taste:
anterior 2/3 of the tongue
Cranial VII motor
Facial
Glands: Lacrimal nasal submandibular sublinngual
Facial expressions: tempral branch zygomatic branch bucchal branch mandibular branch cervical branch
Cranial VIII
S, M or B
Vestibulocochlear or Auditory
S
Cranial VIII sensory
Vestibulecochlear
Equilibrium hearing
Cranial IX
S, M or B
Glossopharyngneal
B
Cranial IX sensory
Glossopharyngeal
Glossopharyngneal
pa;ate tastes; 1/3 posterior of tongue
-pharynx and tonsils
- carotid sinus and carotid body
Cranial IX motor
Glysspphryngneal
Glossopharyngneal
- pharyneal muscles, parotid gland
Cranial X
Vagus
B
Cranial X sensory
Vagus
Vagus
- pharyngeal taste
- aortic body and aortic arch
- atria
- diaphragm
- esophagus
- respiratory tract
Cranial X motor
Vagus
Vagus
- heart, smooth muscles and the glands of the respiratory and digestive tracts
Cranial XI
Accessory or Spinal Accessory
M
Cranial XI motor
Accessory or spine
Accessory or Spinal Accessory soft palate: 1. pharynx 2. arynx 3. sternocleidomastoid
Cranial XII
Hypoglossal
M
Cranial XII
Hypoglossal
hypoglossal- tongue movement
Ansomia
loss of sense of smell
accomadation
- changing focal point between
dextroelevationz
Up and right
Dextroversion
right
right eye - Lateral rectus VI and left eye- medial rectus III
dextrodepression
down and right
Lateral rectus VI - right eye
Superior oblique IV - left eye
levoelvation
up and left
IO- right III
SR- left III
levoversion
left
levedeprssion
down and left
supraversion
up
Right eye: SR & IO
Left eye: IO & SR
III
convergence
crossed
RIG & Left = MR III
Motor stimulation of scretion of saliva
Glossepharygneal & Facial
Movement of superior of oblique muscle of the eye
Abducens, Oculomotor, Trochlear
Inability of a person to turn his head to the side
- Accessory or Spinal Accessory spinal
Autonomic system control of the heart
- vagus
Ability to detect odor
olfactory
Inability to feel touch on the face
trigemial
Bell’s palsy
facial
Ability to detect taste
Facial, Glossophyrnal and vagus
The accomodation refelx
Optic & oculomotor
Pneumonic for cranial nerves
Oh- olfactory Oh- optic Oh- oculomotor To- trochlea Touch- trigeminal A - abducens Female - facial Vagina- vestbuocholclear or auditory Gives- glossopharyngeal Verne - vagus A - accessory or spinal Hard-on- hypoglossal
Nerve function pneumonic
Some Say Marry Money But My Brother Says Big Breasts Matter More
Has occurred when you are no longer aware of your clothes touching your skin
adaptation
Receptors that have free nerve endings
thermorecptors and pain receptors
sensation after removal of stimulus
afterimage
occurs when visceral pain is felt as cutaneous pain
reffered pain
area of tissue containing the receptors of one sensory neuron
receptor field
second- oreder neuron crosses from one side of the CNS to the other
dessucation
receptors that detect changes in the internal environment
interoreceptors
Which are had the greatest ability of to detect two points
index finger tip
Least abiltiy to detect to point
neck
Why is there a difference in distribution and overlap of receptors you observed in the two point discrimination
Two points are felt as the same if they are within the same receptor field.
Explain the role adaptation plays in perception afterimage
phasic receptors adapt quickly and may keep sending AP, even when removed and this is an afterimage
Hand initially placed in 40 c
warm receptors
hand initially placed in 20
cold receptors
hand shifted from 40 to 30
cold receptors
hand shifted from 20 to 30
warm receptors
sensory component of contraction of the ciliary muscle
Cranial nerve II- optic
motor component of ciliary muscle
cranial nerve III- oculumotor
sensory component of pupil dialation
cranial nerve II
normal vision
emmetropia
optic disc
blind spot
color vision
cones
rods
black and white
uneven cornea
antgmatism
vision problem due to older age
presbyopia
As individual focusses on an object that is getting closer is
1. 4- c eyes converge 2. constrict pupila 3. ciliary muscle contract AND lenses thin
