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Final

BIOM 4070 Study Guide - Tectorial Membrane, Basal Lamina, Metaplasia

5 Pages
79 Views
Fall 2016

Department
Biomedical Sciences
Course Code
BIOM 4070
Professor
Brenda L Coomber
Study Guide
Final

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Special senses exam questions
1. Vision (this is the retina)
2. Rods: a type of photoreceptor specialized to respond in low light conditions and
transmit information to other neurons in the retina.
Cones: a type of photoreceptor specialized to respond to different
wavelengths/colors and transmit information to other neurons in the retina
OR Muler cells: support cells for photoreceptors
3. (Retinal pigmented epithelium) Phagocytose shed outer segments of
photoreceptors which is essential for their function OR absorb excess light and
prevent it from reflecting back into retina
1. Tongue
2. Taste buds
3. Sodium directly triggers opening of ion channels, depolarizing the cell, causing
the release of neurotransmitters
Sugar binds to surface receptors, triggering the opening of ion channels,
depolarizing the cell, causing the release of neurotransmitters
1) What organ is shown in this image? (1 mark)
2) Identify the structure indicated by the green circle. (1 mark)
3) How would the cells in the circled area respond to Na+? how would they respond
to sugar? (1 mark each)

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Description
Special senses – exam questions 1. Vision (this is the retina) 2. Rods: a type of photoreceptor specialized to respond in low light conditions and transmit information to other neurons in the retina. Cones: a type of photoreceptor specialized to respond to different wavelengths/colors and transmit information to other neurons in the retina OR Muler cells: support cells for photoreceptors 3. (Retinal pigmented epithelium) Phagocytose shed outer segments of photoreceptors which is essential for their function OR absorb excess light and prevent it from reflecting back into retina 1) What organ is shown in this image? (1 mark) 2) Identify the structure indicated by the green circle. (+ mark) 3) How would the cells in the circled area respond to Na ? how would they respond to sugar? (1 mark each) 1. Tongue 2. Taste buds 3. Sodium directly triggers opening of ion channels, depolarizing the cell, causing the release of neurotransmitters Sugar binds to surface receptors, triggering the opening of ion channels, depolarizing the cell, causing the release of neurotransmitters A B 1) Identify the structure shown in this image. What special sen
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