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!!!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. 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. 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. Unit II lab exercises 8-10 Sarcomere Myoneural Junction Endocrine Glands Sarcomere Model Lab exercise #8 I band A band Actin & Myosin overlap area Mitochondria Sarcoplasmic Reticulum (all yellow areas) ? ? ? ? ? & ? overlap area ? ? ? (all yellow areas) Length of 1 sarcomere Z-Line Glycogen granules (orange dots) Lateral sacs (cisternae) Transverse tubules Z-line ? of ? ? ? ? (orange dots) ?-? ? ? (?) ? ? ?-? Myoneural Junction Model Lab exercise #8 Skeletal muscle fiber made up of many myofibrils surrounded by endomysium Myoneural junction area Motor neuron sarcolemma ? ? ? made up of many ? surrounded by ? ? ? area ? ? ? Synaptic cleft (small space between muscle and neuron) A band (darker) I band (lighter) Myelin of neuron (yellow swirls xs.) ? ? (small space between muscle and neuron) ? ? (?) ? ? (?) ? of neuron (yellow swirls xs.) Multipolar Neuron Lab exercises #9 Transverse Section of the axon / a m ath m e e h l ro a l S u Ne eur rin e P Myelin Sheath / Sheath of Schwann Axon core containing neurofibrils ?/?? ? ? / ? of ? ? section of the ? ? ? containing ? The Axon Neurolemma / Perineural Sheath Myelin Sheath / Sheath of Schwann core Nodes of Ranvier The ? ? / ? ? ? ? / ? of ? ? ? of ? Soma of multipolar neuron Incoming axon terminals Nucleus Dendrites Initial segment (Hillock) of axon ? of ? ? ? ? ? ? ? ? ? ( ? ) of ? Brain Ventricles Lab exercises #9 Cerebral aqueduct Rt. Lat. Vent. Hole for thalamus Intermediate mass 4th. Vent. 3rd. Vent. Rt. Lateral view of brain ventricles ? ? ? For ? ? ? ? ? ? ? ? ? ? ? ? view of ? ? 3rd. Vent. Lt. lat. Vent. .l l.v . ent. at . V R t. L v. r.l. Anterior view of brain ventricles ? ? ? ? ? ? ? ? ? ? ? ?? ? ? view of ? ? lv Le ft l ate ra l ve nt. 4th. Vent. ra ate ht l Cerebral aqueduct Ri g en t. 3rd. Vent. Choroid plexus (pink areas) Posterior view of brain ventricles ? ? ? ? ? ? ? ? ? ? ? ? (pink areas) ? ? ? view of ? ? Brain Stem Lab exercises #9 Thalamus lateral masses Optic nerves Pituitary gld. Internal carotid a. Pons Medulla oblongata Spinal cord Anterior view of brain stem ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? view of ? ? Thalamus Lateral masses Choroid plexus (rt. Lat. Vent.) Pineal gld. Choroid plexus (3rd. Vent.) Posterior view of brain stem ? ? ? ? ? (? ? ?) ? ?(? ?) ? ? ? view of ? ? Fornix Thalamus lateral masses 3rd. Vent. & Hypothalamic areas Choroid plexuses Thalamus intermediate mass Cerebral aqueduct Pituitary gld. Optic chiasm Pons Medulla oblongata Midsagittal section view of brain stem Pineal gld. ? ? ? ? ? ? ? ? &? ? ? ? ? ? ? ? ? ? ? ? ? ? ? section view of ? ? ? ? ? view ? view Cranial nerves (white structures) Inferior-anterior view of brain stem ? ? (white structures) ?-? view of ? ? Spinal Cord Lab exercises #9 Dorsal roots Dorsal root ganglia Gray matter (butterfly) Central canal Ventral median fissure Ventral roots Spinal nerve ? ? ? ? ? ? ?(?) ? ? ? ? ? ? ? ? ? Eye Lab exercises #9 Superior rectus mus. Frontal bone Lacrimal gld. Lacrimal duct Cornea (clear) L A T E R A L Sclera Lateral rectus mus. (white) Zygomatic bone M E D I A L Iris (blue) Pupil (black hole) Maxilla bone Inferior oblique mus. ? ? ? ? ? ? ? ? ? ? (clear) ? ? ? ? ? ? ? ? ? ? ? ? ? ? (white) ? (blue) ? ? ? ? ? ? ? ? ? ? ? (black ?) Superior oblique mus. rior Medial rectus mus. Optic nerve La te r al re c tu s m us . Sup e M E D I A L rec tus mu s. Lacrimal gld. Inferior rectus mus. L A T E R A L ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Superior view of dissected eye ball Choroid (brown) Inferior rectus mus. Sclera (white) Lens Cornea Retina (innermost) Ciliary body / muscle Medial rectus mus. A N T E R I O R ? view of dissected eye ball ? ? ? ? (brown) ? (white) ? ? ? ? ? / ? ? (innermost) ? ? ? ? ? ? ? ? ? ? Ear Lab exercises #9 Anterior view or ear ea r ear dl e na l id Inte r M Petrus part of Temporal bone (cut away) External ear External auditory meatus ? view or ear ? ? ? ? ? part of ? bone (cut away) ? ? ? ? ? Anterior view or ear 3 Semicircular canals Vestibulocochlear nerve Ossicles in middle ear Cochlea Tympanic memb. / eardrum Eustachian / Auditory tube Internal Carotid a. ? view or ear ? ? ? ? ? ? in ? ? ? ? ? / ? ?/? ? ? ? ? Anterior view of ear detail 3 semicircular canals Vestibulocochlear nerve Incus Cochlea Ty m pa ni c m em b. Malleus Stapes ? view of ear detail ? ? ? ? ? ? ? ? ? ? ? Stapes connects here Incus Malleus Tympanic memb. ? connects here ? ? ? ? Cochlear Labyrinth Lab exercises #9 Anterior view of cochlear labyrinth Cochlea 3 semicircular canals Vestibule area L A T E R A L M E D I A L Oval window ? view of ? ? ? ? ? ? ? area ? ? ? ? ? ? ? ? ? ? ? ? ? ?? Posterior view of cochlear labyrinth Cochlea Vestibulocochlear Nerve (CN #8) ? view of ? ? ? ? ? (CN #?) Dissected Cochlea Vestibular membrane Scala Vestibuli (pink) Scala Media Cochlear Duct (blue) Organ of Corti (inside Cochlear duct) Vestibulocochlear nerve Scala Tympani (green) Dissected ? ? ? (pink) ? ? ? ?/? ? (blue) ? ? (green) ? of ? (inside ? ? ) ? ? Human Brain Lab exercises #9 Central fissure Parietal lobe Lateral fissure Frontal lobe Temporal lobe Occipital lobe Cerebellum Pons Medulla oblongata Rt. Lateral cerebral hemisphere ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Corpus callosum Pineal body / gland Cerebral aqueduct Intermediate mass of thalamus Fornix Hypothalamic area 3rd. Ventricle area Parietoccipital sulcus Optic chiasm 4th. ventricle Lt. lateral cerebral hemisphere ? ? ? ?/? ? ? of ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Cerebellum Medulla oblongata Temporal lobe Pons Frontal lobe Optic nerves (CN#2) Olfactory nerves (CN#1) Inferior view of whole brain ? ? ? ? ? ? ? ? ? ? (CN#?) ? ? (CN#?) ? view of whole brain