Anatomy & Physiology B/C

[sciolylover13]

1. Volkmann canals are channels lying at right angles to the Harvesian or central canal, connecting blood and nerve supply of periosteum to the Haversian canal.
2. Scoliosis is a lateral curvature of the vertebral column. In extreme cases, there may be compression of some of the internal organs, scoliosis occurs in the rapid growth period of the teens, more often in girls than in boys. Early identification and treatment produce good results. Three proven treatments for scoliosis-observation, bracing, and surgery. These depend on the severity of scoliosis and physical maturity of the child.

All correct!! Your turn.

[Anu_vb]

Name and explain 4 physical changes that take place when a skeletal muscle contracts.

[Anu_vb]

Name and explain 4 physical changes that take place when a skeletal muscle contracts.

Following physical changes are observed during a muscle contraction:
1) Shortening of Muscle Fiber: During muscle contraction the sarcomeres shorten to about 60-70% of the rest length. This depends on the strength of the stimulus and the # of motor units involved.
2) Viscosity: Viscosity during muscle contraction and density of the sarcoplasm increases.
3) Tonicity: The partial contraction of a relaxed muscle is tonus. During muscle contraction, tonicity increases as more and more motor units come into the phase of contraction.
4) Heat production: The energy released by ATP during muscle contraction is partially converted to heat which helps in maintaining homeothermy.
5) Electrical changes: The sarcolemma is with a resting potential of 90mV. During contraction an action potential of +45 to +50mV is developed.

[sciolylover13]

Name and explain 4 physical changes that take place when a skeletal muscle contracts.

Following physical changes are observed during a muscle contraction:
1) Shortening of Muscle Fiber: During muscle contraction the sarcomeres shorten to about 60-70% of the rest length. This depends on the strength of the stimulus and the # of motor units involved.
2) Viscosity: Viscosity during muscle contraction and density of the sarcoplasm increases.
3) Tonicity: The partial contraction of a relaxed muscle is tonus. During muscle contraction, tonicity increases as more and more motor units come into the phase of contraction.
4) Heat production: The energy released by ATP during muscle contraction is partially converted to heat which helps in maintaining homeothermy.
5) Electrical changes: The sarcolemma is with a resting potential of 90mV. During contraction an action potential of +45 to +50mV is developed.

Thanks for that!! I didn't know what you were asking, so I didn't answer. Also, I was being lazy.

Are you going to ask another question?

[sciolyFTW_aku]

I'm not sure if he is going to reply, but if he does, you guys can throw out my question.

Name the 7 types of psoriasis.

[sciolylover13]

I'm not sure if he is going to reply, but if he does, you guys can throw out my question.

Name the 7 types of psoriasis.

There are 7 types of psoriasis????

Answers (I had to look this up) (Click to Show Hidden Text)

plaque psoriasis, guttate psoriasis, inverse psoriasis, pustular psoriasis, erythrodermic psoriasis, nail psoriasis, psoriatic arthritis

[sciolyFTW_aku]

I think that is right, but there might be more types.

On the nationals test last year, we had to name the 5 type of psoriasis. The night before, my partner started memming the types so I was glad...

[sciolylover13]

I think that is right, but there might be more types.

On the nationals test last year, we had to name the 5 type of psoriasis. The night before, my partner started memming the types so I was glad...

I didn't take the nats test last year... i was an alternate.

Wait, do I post a question??? Too bad, I'm going to post one anyway :lol: (Click to Show Hidden Text)

Name 3 muscles that assist in wrist flexion.

Edit: removed some stuff.

[sciolyFTW_aku]

Flexor Carpi Ulnaris, Flexor Carpi Radialis, and Palmaris Longus

How do you hide your answers?

[sciolyFTW_aku]

I think that is right, but there might be more types.

On the nationals test last year, we had to name the 5 type of psoriasis. The night before, my partner started memming the types so I was glad...

I didn't take the nats test last year... i was an alternate. Why was I born in 2002 and not 2001......

Wait, do I post a question??? Too bad, I'm going to post one anyway :lol: (Click to Show Hidden Text)

Name 3 muscles that assist in wrist flexion.

Lol that small text though...