c*****x
发帖数: 405 | 1 【 以下文字转载自 Biology 讨论区 】
发信人: civiclx (whoknows), 信区: Biology
标 题: 问一个cardiomyocytes 和skeletal msucle cells in vitro culture的问题。
发信站: BBS 未名空间站 (Thu Apr 29 12:16:29 2010, 美东)
刚刚开始搞这个体外培养，有些不懂的地方。
这两种细胞要是没有外界刺激，比方说applied electronic field，平时会不会自己
contract?
是不是都要外界刺激才会contract呢？以前有个教授告诉我心肌细胞只有外界刺激才会
收缩，自己收缩是要快死的细胞。可最近看了一篇文章又说心肌自己会收缩，骨骼肌要
外界刺激才会。可我自己培养的时候看到骨骼肌没有刺激的时候也轻微颤动。所以糊涂
了。多谢。 |
|
L**********s
发帖数: 12988 | 2 07. Chair Pose: Utkatasana
(OOT-kah-TAHS-ana)
utkata = fierce
Benefits：
- Strengthens the hip flexor msucles, the front of your thighs, you adductor
musclces of your inner thighs and the gluteus mesucles of your hips.
- Strengthens and stretches your calf muscles.
- Opens your chest and shoulders.
- Improves the range of motion in your ankles.
- Increases proprioception (or the sense of position in space) in your feet.
- Traditionally thought to stimulate your abdominal organs and your heart.
Ca... 阅读全帖 |
|
L**********s
发帖数: 12988 | 3 07. Chair Pose: Utkatasana
(OOT-kah-TAHS-ana)
utkata = fierce
Benefits：
- Strengthens the hip flexor msucles, the front of your thighs, you adductor
musclces of your inner thighs and the gluteus mesucles of your hips.
- Strengthens and stretches your calf muscles.
- Opens your chest and shoulders.
- Improves the range of motion in your ankles.
- Increases proprioception (or the sense of position in space) in your feet.
- Traditionally thought to stimulate your abdominal organs and your heart.
Ca... 阅读全帖 |
|
c*****x
发帖数: 405 | 4 刚刚开始搞这个体外培养，有些不懂的地方。
这两种细胞要是没有外界刺激，比方说applied electronic field，平时会不会自己
contract?
是不是都要外界刺激才会contract呢？以前有个教授告诉我心肌细胞只有外界刺激才会
收缩，自己收缩是要快死的细胞。可最近看了一篇文章又说心肌自己会收缩，骨骼肌要
外界刺激才会。可我自己培养的时候看到骨骼肌没有刺激的时候也轻微颤动。所以糊涂
了。多谢。 |
|
|
s******y
发帖数: 28562 | 6 I assume you are talking about embryonic cardiomyocyte and skeletal muscle
cells.
In these cases, yes, they can contract on their own. |
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c*****x
发帖数: 405 | 7 Someone says no without neuron cells, but someone says yes. Anyone knows?
Thanks. |
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