Unit II lab exercises 810

1
(No Transcript)
2
!!!CAUTION!!!

• This power point presentation is intended to be
  used as an add on exercise to your standard lab
  experience. It is not intended to be used in
  lieu of the hands on lab time. In lab you will
  be tested on the actual lab specimens and not the
  pictures contained within this video presentation.

3
How to use this material

• Each specimen is illustrated in a two slide
  sequence. The first slide contains a fully
  labeled specimen. The second slide is missing
  the labels and asks you to supply them like a
  test circumstance. You can toggle back and forth
  between the two slides until you have mastered
  all the items.
• This presentation is patterned after material
  within your lab manual by Darrell Davies. Be
  sure to check with your instructor for any
  alterations specific to your course.
• This presentation is designed to better prepare
  you for lab quizzes, or Part I of the two part
  testing system in each lab unit. Other video
  material (A.D.A.M. and Histology) is accessed
  elsewhere. Those materials are for lab
  practicals, Part II of testing in each lab unit.

4
ACKNOWLEDGEMENTS

• Funding for this presentation was obtained
  through an Innovations In Learning Technologies
  grant at KVCC.
• I wish to thank Marylan Hightree and Lynn
  Morrison for their technical assistance during
  development of this material.
• I also wish to thank Michelle VanderMeer for her
  work in developing the beta version of this
  presentation as her tutoring internship while
  working at the KVCC Learning Center.

5
Unit IIlab exercises 8-10

• Sarcomere
• Myoneural Junction
• Endocrine Glands

6
Sarcomere Model

• Lab exercise 8

7
A band
I band
Actin Myosin overlap area
Mitochondria
Sarcoplasmic Reticulum (all yellow areas)
Sarcomere Model
8
? ?
? ?
? ? overlap area
?
? ? (all yellow areas)
? Model
9
Length of 1 sarcomere
Glycogen granules (orange dots)
Z-Line
Z-line
Lateral sacs (cisternae)
Transverse tubules
10
? of ? ?
? ? (orange dots)
?-?
?-?
? ? (?)
? ?
11
Myoneural Junction Model

• Lab exercise 8

12
Skeletal muscle fiber made up of many
myofibrils surrounded by endomysium
Myoneural junction area
sarcolemma
Motor neuron
13
? ? ? made up of many ? surrounded by ?
? ? area
?
? ?
14
Synaptic cleft (small space between muscle and
neuron)
A band (darker)
I band (lighter)
Myelin of neuron (yellow swirls xs.)
15
? ? (small space between muscle and neuron)
? ? ( ? )
? ? ( ? )
? of neuron (yellow swirls xs.)
16
Multipolar Neuron

• Lab exercises 9

17
Transverse Section of the axon
Neurolemma / Perineural Sheath
Myelin Sheath / Sheath of Schwann
Axon core containing neurofibrils
18
? section of the ?
? / ? ?
? ? containing ?
? ? / ? of ?
19
The Axon
Neurolemma / Perineural Sheath
Myelin Sheath / Sheath of Schwann
core
Nodes of Ranvier
20
The ?
? / ? ?
? ? / ? of ?
?
? of ?
21
Soma of multipolar neuron
Incoming axon terminals
Nucleus
Initial segment (Hillock) of axon
Dendrites
22
? of ? ?
? ? ?
?
? ? ( ? ) of ?
?
23
Brain Ventricles

• Lab exercises 9

24
Cerebral aqueduct
Hole for thalamus Intermediate mass
Rt. Lat. Vent.
4th. Vent.
3rd. Vent.
Rt. Lateral view of brain ventricles
25
? ?
? For ? ? ?
? ? ?
? ?
? ?
? ? view of ? ?
26
3rd. Vent.
Lt. lat. Vent.
Rt. Lat. Vent.
l.l.v.
r.l.v.
Anterior view of brain ventricles
27
? ?
? ? ?
? ? ?
? ? ?
? ? ?
? view of ? ?
28
3rd. Vent.
Left lateral vent.
Right lateral vent.
Cerebral aqueduct
Choroid plexus (pink areas)
4th. Vent.
Posterior view of brain ventricles
29
? ?
? ? ?
? ? ?
? ?
? ? (pink areas)
? ?
? view of ? ?
30
Brain Stem

• Lab exercises 9

31
Thalamus lateral masses
Optic nerves
Internal carotid a.
Pituitary gld.
Pons
Medulla oblongata
Spinal cord
Anterior view of brain stem
32
? ? ?
? ?
? ? ?
? ?
?
? ?
? ?
? view of ? ?
33
Thalamus Lateral masses
Choroid plexus (rt. Lat. Vent.)
Choroid plexus (3rd. Vent.)
Pineal gld.
Posterior view of brain stem
34
? ? ?
? ? ( ? ? ? )
? ? ( ? ? )
? ?
? view of ? ?
35
Thalamus lateral masses
Fornix
3rd. Vent. Hypothalamic areas
Choroid plexuses
Thalamus intermediate mass
Cerebral aqueduct
Pituitary gld.
Pineal gld.
Optic chiasm
Pons
Medulla oblongata
Midsagittal section view of brain stem
36
? ? ?
?
? ?
? ? ? ?
? ?
? ? ?
? ?
? ?
? ?
?
? ?
? section view of ? ?
37
? view
? view
38
Cranial nerves (white structures)
Inferior-anterior view of brain stem
39
? ? (white structures)
?-? view of ? ?
40
Spinal Cord

• Lab exercises 9

41
Dorsal roots
Dorsal root ganglia
Gray matter (butterfly)
Central canal
Ventral median fissure
Spinal nerve
Ventral roots
2 transverse sections of the spinal cord
42
? ?
? ? ?
? ? ( ? )
? ?
? ? ?
? ?
? ?
2 transverse sections of the spinal cord
43
Eye

• Lab exercises 9

44
Superior rectus mus.
Frontal bone
Lacrimal gld.
Lacrimal duct
Cornea (clear)
L A T E R A L
M E D I A L
Sclera (white)
Pupil (black hole)
Lateral rectus mus.
Iris (blue)
Zygomatic bone
Maxilla bone
Inferior oblique mus.
45
? ? ?
? ?
? ?
? ?
? (clear)
???????
??????
? (white)
? (black ?)
? ? ?
? (blue)
? ?
? ?
? ? ?
46
Superior oblique mus.
Lacrimal gld.
L A T E R A L
M E D I A L
Superior rectus mus.
Lateral rectus mus.
Medial rectus mus.
Inferior rectus mus.
Optic nerve
47
? ? ?
? ?
???????
??????
? ? ?
? ? ?
? ? ?
? ? ?
? ?
48
Superior view of dissected eye ball
Medial rectus mus.
A N T E R I O R
Retina (innermost)
Cornea
Lens
Ciliary body / muscle
Choroid (brown)
Sclera (white)
Inferior rectus mus.
49
? view of dissected eye ball
? ? ?
????????
? (innermost)
?
?
? ? / ?
? (brown)
? (white)
? ? ?
50
Ear

• Lab exercises 9

51
Anterior view or ear
Petrus part of Temporal bone (cut away)
Internal ear
Middle ear
External ear
External auditory meatus
52
? view or ear
? part of ? bone (cut away)
? ?
? ?
? ?
? ? ?
53
Anterior view or ear
3 Semicircular canals
Vestibulocochlear nerve
Ossicles in middle ear
Cochlea
Tympanic memb. / eardrum
Eustachian / Auditory tube
Internal Carotid a.
54
? view or ear
? ? ?
? ?
? in ? ?
?
? ? / ?
? ? ?
? / ? ?
55
Anterior view of ear detail
3 semicircular canals
Vestibulocochlear nerve
Incus
Stapes
Malleus
Tympanic memb.
Cochlea
56
? view of ear detail
? ? ?
? ?
?
?
?
? ?
?
57
Stapes connects here
Incus
Malleus
Tympanic memb.
View of medial surface tymp. memb.
58
? connects here
?
?
? ?
View of ? surface ? ?
59
Cochlear Labyrinth

• Lab exercises 9

60
3 semicircular canals
Anterior view of cochlear labyrinth
Cochlea
Vestibule area
L A T E R A L
M E D I A L
Oval window
61
? view of ? ?
? ? ?
?
? area
???????
??????
? ?
62
Posterior view of cochlear labyrinth
Cochlea
Vestibulocochlear Nerve (CN 8)
63
? view of ? ?
?
? ? (CN ?)
64
Dissected Cochlea
Scala Vestibuli (pink)
Vestibular membrane
Scala Media Cochlear Duct (blue)
Scala Tympani (green)
Organ of Corti (inside Cochlear duct)
Vestibulocochlear nerve
65
Dissected ?
? ? (pink)
? ?
? ? / ? ? (blue)
? ? (green)
? of ? (inside ? ? )
? ?
66
Human Brain

• Lab exercises 9

67
Central fissure
Parietal lobe
Lateral fissure
Frontal lobe
Temporal lobe
Occipital lobe
Cerebellum
Pons
Medulla oblongata
Rt. Lateral cerebral hemisphere
68
? ?
? ?
? ?
? ?
? ?
? ?
?
?
? ?
? ? ? ?
69
Corpus callosum
Pineal body / gland
Intermediate mass of thalamus
Cerebral aqueduct
Fornix
Hypothalamic area
3rd. Ventricle area
Parietoccipital sulcus
Optic chiasm
4th. ventricle
Lt. lateral cerebral hemisphere
70
? ?
? ? / ?
? ? of ?
? ?
?
? ?
? ? ?
? ?
? ?
? ?
? ? ? ?
71
Cerebellum
Medulla oblongata
Temporal lobe
Pons
Frontal lobe
Optic nerves (CN2)
Olfactory nerves (CN1)
Inferior view of whole brain
72
?
? ?
? ?
?
? ?
? ? (CN?)
? ? (CN?)
? view of whole brain