Physiology · Reproductive System · Hard
Relaxin
Meaning: A hormone from the corpus luteum and placenta that softens the cervix and loosens pelvic ligaments in pregnancy.
In practice: Raised relaxin in pregnancy may contribute to pelvic girdle pain.
Quick check
Two questions on related physiology words.
Which word means: The intrinsic ability of cardiac or skeletal muscle cells to shorten and generate force.
Answer: Contractility
Which word means: The phase of the heartbeat when the heart muscle relaxes and the chambers fill with blood.
Answer: Diastole
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