Muscles
Bony attachment to the mobile end of a muscle
Insertion
When the cell briefly becomes more positive before hitting threshold during excitation-contraction coupling
End-Plate Potential
Muscle that flares the nostrils
Nasalis
Type of nerves that send signals to the CNS
Sensory
Resting membrane potential of a neuron
-70mV
Resting Membrane Potential of a Muscle
-90mV
Calcium binds to Troponin, releasing Tropomyosin from the binding sites
Muscle that protrudes lower lip
All motor neurons are what structural classification?
Multipolar
During depolarization, what is the state of the activation and inactivation Na+ gate?
Both are open to allow Na+ to enter in and depolarize
Portion of a sarcomere containing only thin filaments
I band
What type of channels lie along the sarcolemma?
Muscles that elevate first and second ribs during forced inspiration
Scalene muscles
Two types of glial cells of the PNS
Schwann's cells and Satellite cells
What type of channels are present in the receptive segment?
Chemically-gates channels
Calcium-containing tubes that connect T-tubules
Sarcoplasmic Reticulum
Is tetrodotoxin flaccid or spastic paralysis?
Flaccid
Muscles used to frown by moving corners of lower lip inferiorly
Depressor anguli oris
What are the three types of brain tumors? Think of the origin (Neurons are amitotic. What's the definition of cancer?)
Meningioma (meninges), tumor from metastasis, Glioma (Glia)
What are the numbers and directions of a sodium/potassium pump?
3 Na+ out/ 2K+in
Involuntary muscle containing striations and branches.
Cardiac muscle
Highest percentage of muscle fibers in sprinters are ____
Fast glycolytic
Muscle that elevates and turns eye laterally
Inferior oblique eye muscles
Compare anterograde vs retrograde neuronal transport
anterograde moves away from the cell body while retrograde moves recycled materials toward the cell body
Small, short-lived changes in the RMP that can cause a depolarization or hyperpolarization
Graded potentials