UNDERSTANDING - 1 - COW_Milk Letdown

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* 1. Enter your First and Last Name

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* 2. Teat skin has a high concentration of sensory nerves that are sensitive to touch, pressure, and temperature.

True

False

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* 3. Milk can be removed through the milking process only if it has been released from the alveoli into the udder ducts, and cistern and teat sinuses.

True

False

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* 4. Oxytocin is released for a brief period, and only once at the start of milking.

True

False

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* 5. A calm and well stimulated cow can produce more milk through lactation than a cow that does not experience a good milk letdown process.

True

False

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* 6. Select all that apply. Oxytocin:

is a hormone

does not require a stimulus to be released

is produced in the hypothalamus

causes contractions of the udder skin

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* 7. Select all that apply. Adrenaline:

is released in response to pain or fear

is a hormone

does not affect the contraction of myoepithelial cells

competes with oxytocin for the same receptors

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* 8. Select all that apply

stimulation time required for oxytocin release is 10 - 20 seconds

transfer of oxytocin to udder and udder contraction takes 1 minute

continued low-level oxytocin release caused by stimulation from the milking machine takes 4 to 8 minutes

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* 9. Select the best answer. Tiny structures called_______surround the alveoli and cause them to contract and release milk

pituitary glands

cisterns

ducts

myoepithelial cells

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* 10. What is the correct order (1-4) of the following events: 1. myoepithelial cells contract in response to oxytocin 2. external stimulus sends a signal to the cow’s brain to release oxytocin 3. milk is discharged from the alveoli into the milk ducts and gland cistern 4. blood carries oxytocin through the cow’s body to the udder

3,1,4,2

1,2,3,4

2,4,1,3

2,1,4,3