What Function Does Placental PTHrp (Parathyroid Hormone-Related Peptide)serve?​

question 56

Multiple Choice

What function does placental PTHrp (parathyroid hormone-related peptide) serve?​

• A)​It helps prepare the mammary glands for lactation.
• B)It increases maternal plasma Ca^₂+ levels for use in calcifying fetal bones.
• C)It softens the cervix in preparation for cervical dilation at parturition.
• D)It maintains the corpus luteum of pregnancy.
• E)​It stimulates growth of the myometrium.

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Definitions:

Fixed-interval Schedule

A type of reinforcement schedule in operant conditioning where rewards are delivered at fixed intervals of time, as long as the correct response is made.

Secondary Reinforcers

Conditioned stimuli that acquire reinforcement value through their association with primary reinforcers.

Conditioned Reinforcers

Stimuli or rewards that have become reinforcing by being paired with another reinforcer, sometimes called secondary reinforcers.

Established Reinforcers

Stimuli that have acquired the capacity to strengthen behavior due to their consistent association with primary reinforcers or through inherent desirability.