Anatomy and Physiology B/C

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Re: Anatomy and Physiology B/C

Post by amk578 »

No one's posted in a while so I guess I'll ask the next questions:

1.What is the main function of the sarcoplasmic reticulum?

2. What type of bone fracture presses the bone inward, which is typical of a skull fracture?

3. Which layer of the skin contains many layers of dead keratinocytes?
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Re: Anatomy and Physiology B/C

Post by reninkidney »

No one's posted in a while so I guess I'll ask the next questions:

1. What is the main function of the sarcoplasmic reticulum?

2. What type of bone fracture presses the bone inward, which is typical of a skull fracture?

3. Which layer of the skin contains many layers of dead keratinocytes?
1. transport Ca++ ions to tropomyosin to start contraction
2. Impacted...???
3. stratum conruem
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Re: Anatomy and Physiology B/C

Post by amk578 »

reninkidney wrote: September 14th, 2019, 3:49 pm
No one's posted in a while so I guess I'll ask the next questions:

1. What is the main function of the sarcoplasmic reticulum?

2. What type of bone fracture presses the bone inward, which is typical of a skull fracture?

3. Which layer of the skin contains many layers of dead keratinocytes?
1. transport Ca++ ions to tropomyosin to start contraction
2. Impacted...???
3. stratum conruem
1. Correct!
2. I think a term for it is "depressed fracture", which is caused typically through blunt force trauma
3. Yup!

Your turn!
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Re: Anatomy and Physiology B/C

Post by reninkidney »

1. List all the steps in the sliding filament model of muscle contraction.
2. What is the difference between endochondral ossification and intramembranous ossification?
3. Describe the 3 phases of hair growth.
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Re: Anatomy and Physiology B/C

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Re: Anatomy and Physiology B/C

Post by N0sm4 »

1. The myosin head attaches to an ATP molecule > The myosin head hydrolyzes the ATP molecule to ADP and phosphorus and the energy that is released is used to energize the myosin head and pigeon it forward > The myosin head latches on to the actin microfilament to form a cross-bridge > The inorganic phosphorus is released causing the myosin head to pull the actin microfilaments toward the m line, and then release the ADP molecule > the cross-bridge is broken and the myosin returns to its none energized state.

2. Echondrial ossification is the process in fetal development where cartilage hardens into bone tissue. On the other hand, intramembranous ossification is the formation of bone tissue from scratch.

3. Anagen is the growth phase. Catagen is the transitional phase. Telogen is the resting phase
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Re: Anatomy and Physiology B/C

Post by reninkidney »

1. The myosin head attaches to an ATP molecule > The myosin head hydrolyzes the ATP molecule to ADP and phosphorus and the energy that is released is used to energize the myosin head and pigeon it forward > The myosin head latches on to the actin microfilament to form a cross-bridge > The inorganic phosphorus is released causing the myosin head to pull the actin microfilaments toward the m line, and then release the ADP molecule > the cross-bridge is broken and the myosin returns to its none energized state.

2. Echondrial ossification is the process in fetal development where cartilage hardens into bone tissue. On the other hand, intramembranous ossification is the formation of bone tissue from scratch.

3. Anagen is the growth phase. Catagen is the transitional phase. Telogen is the resting phase
Good! Your turn!
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Re: Anatomy and Physiology B/C

Post by N0sm4 »

1. Where is the calcaneus located and what type of bone is it?

2. What are the three hamstring muscles?

3. What are types of skin glands
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Re: Anatomy and Physiology B/C

Post by reninkidney »

1. Where is the calcaneus located and what type of bone is it?

2. What are the three hamstring muscles?

3. What are types of skin glands
1. It's located in the foot (heel) and it's a short bone
2. Biceps femoris, semitendinosus, semimembranosus
3. Sudoriferous (sweat) glands and sebaceous (oil) glands
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Re: Anatomy and Physiology B/C

Post by N0sm4 »

reninkidney wrote: September 21st, 2019, 8:54 pm
1. Where is the calcaneus located and what type of bone is it?

2. What are the three hamstring muscles?

3. What are types of skin glands
1. It's located in the foot (heel) and it's a short bone
2. Biceps femoris, semitendinosus, semimembranosus
3. Sudoriferous (sweat) glands and sebaceous (oil) glands
1. Correct
2. Close, Biceps femoris, semitendinosus, Semimebranosus
3. Close, You are just missing ceruminous glands. They produce ear wax.

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