Flashcards in Anatomy- The Autonomic Nervous System Deck (19):
"Rest & digest"
- low energy use, digestion of food
"Fight or Flight"
Rapid heart rate and breathing rate
About 10,000 in adult human;
Most taste buds are located within the papillae(projections of the tongue mucosa)
Dense, a vascular, 2 regions
The white of the eye
Name the 2 layers
Anterior is 1/6 of fibrous tunic
2 layers: stratified squamous epithelium on the outside and simple squamous epithelium on the inside.
Sensory tunic( Retina): consists of 2 layers
Pigmented layer and inner neural layer
Grey, black and white
They can synapse with either rods or cones (but not both)The bipolar cells then transmit the signals from the photoreceptors or the horizontal cells, and pass it on to the ganglion cells directly or indirectly.
Receive input from bipolar cells & their axons
Blind spot( optic disc)
Location on retina where the optic nerve exits eye
Only cones present; region of greatest visual acuity
Cones have 3 different types of opsins to use:
Red cone, green cone, blue cone.
Outer Ear consists of______ & ______.
Auricle(pinna) and the external auditor canal
Tympanic membrane(eardrum) -
vibrates with frequency of sound waves, transfers vibrations to middle ear.
3 ossicles(small bones) of the Tympanic cavity
Malleus(hammer)- attaches to eardrum
Stapes(stirrup)- attaches to oval window of vestibule.
Vestibule is composed two sacs:
Saccule & Utricle