Describe the sarcoplasmic reticulum
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smooth ER of muscle cell that stores calcium
Describe the other organelles and structures found inside skeletal muscle
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, mitochondria
glycogen
triglycerides
myoglobin
Name the major glads of the endocrine system and describe their general location
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1. Pituitary (anterior and inferior to hypothalamus)
2. Pineal (posterior to thalamus)
3. Thyroid (front of trachea/throat)
4. Parathyroid (posterior to thyroid)
5. Adrenal (superior to kidneys)
Describe the general functions of the growth hormone
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, 1. Bone, Muscle, Neurons
- increased growth
- increased amino acid uptake
- stimulated cellular division
- cell differentiation
2. Liver
- Increased glucose
- Decreased glycogenesis
3. Adipose connective tissue
- Increased lipolysis
- decreased lipogenesis
Describe why oxygen consumption remains elevated after exercise
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Addition oxygen is required to
- replenish phosphocreatine stores (can take 2-3 minutes)
- increased work of respiration/ventilation
Describe the events of an action potential at the sarcolemma
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1. The sarcolemma of an unstimulated muscle has a RMP of -90mv
2. Threshold is reached when EPP is produced as Na+ enters the motor end
plate to change RMP from-90 to -65
3. Depolarization occurs as voltage gated Na channels on the sarcolemma
open and Na enters, reversing polarity from negative to positive (-65 to
+30)
4. Depolarization occurs due to closure of voltage gated Na channels and
, opening of voltage gated K channels. K moves out of the cell and polarity
is reversed from +30 to -90
Describe the sarcolemma
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Plasma membrane of a muscle cell, initiation and propagation of action
potential
Name a few of the other organs/tissues that contain endocrine cells
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hypothalamus
skeletal muscle
heart
kidneys
digestive system
Describe the tyrosine kinase second messenger system. Give an example
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Give this one a try later!
smooth ER of muscle cell that stores calcium
Describe the other organelles and structures found inside skeletal muscle
Give this one a try later!
, mitochondria
glycogen
triglycerides
myoglobin
Name the major glads of the endocrine system and describe their general location
Give this one a try later!
1. Pituitary (anterior and inferior to hypothalamus)
2. Pineal (posterior to thalamus)
3. Thyroid (front of trachea/throat)
4. Parathyroid (posterior to thyroid)
5. Adrenal (superior to kidneys)
Describe the general functions of the growth hormone
Give this one a try later!
, 1. Bone, Muscle, Neurons
- increased growth
- increased amino acid uptake
- stimulated cellular division
- cell differentiation
2. Liver
- Increased glucose
- Decreased glycogenesis
3. Adipose connective tissue
- Increased lipolysis
- decreased lipogenesis
Describe why oxygen consumption remains elevated after exercise
Give this one a try later!
Addition oxygen is required to
- replenish phosphocreatine stores (can take 2-3 minutes)
- increased work of respiration/ventilation
Describe the events of an action potential at the sarcolemma
Give this one a try later!
1. The sarcolemma of an unstimulated muscle has a RMP of -90mv
2. Threshold is reached when EPP is produced as Na+ enters the motor end
plate to change RMP from-90 to -65
3. Depolarization occurs as voltage gated Na channels on the sarcolemma
open and Na enters, reversing polarity from negative to positive (-65 to
+30)
4. Depolarization occurs due to closure of voltage gated Na channels and
, opening of voltage gated K channels. K moves out of the cell and polarity
is reversed from +30 to -90
Describe the sarcolemma
Give this one a try later!
Plasma membrane of a muscle cell, initiation and propagation of action
potential
Name a few of the other organs/tissues that contain endocrine cells
Give this one a try later!
hypothalamus
skeletal muscle
heart
kidneys
digestive system
Describe the tyrosine kinase second messenger system. Give an example
Give this one a try later!
