Harvluck B11 W2 Flashcards
Supplies blood to medial aspect of breast
Internal thoracic artery- branch of subclavian artery
Functions of the pelvis?
Locomotion, thermoregulation, labour
Android pelvis
Heart shaped inlet which is more common in taller and Afro-Carribean women. Increases risk of failure of rotation and deep transverse arrest.
Platypelloid pelvis
Wide inlet which makes it difficult for the head to engage.
Anthropoid pelvis
AP diameter is wider than transverse diameter. Increased risk of breech position
Epithelia lining breast ducts
Stratified squamous epithelia
Liver analytes in jaundice
Bilirubin, alkaline phosphatase, aspartate. Normal prothrombin time.
What is the shortest stage of labour?
3rd stage which is 20 minutes.
Complications of prolonged labour?
Incontinence, sepsis and prolapse
How does feedback inhibitor of prolactin work?
Distorts shape of mammary alveoli and suppresses secretion of prolactin.
Effect of oestrogen on mammogenesis
Stimulates mammary duct development and collection of fat in the collective tissue
Effect of progesterone on mammogenesis
In the second trimester, increases the volume of breast tissue. It causes the lobes and alveoli to grow and widening of the ducts.
Effect of oestrogen and progesterone on mammogenesis
Proliferation of the lactocytes/secretory tissues
Hormones for mammary gland growth and differentiation
LH, somatomammatrophin, oestrogen, progesterone, prolactin
What promotes mammary growth in pregnancy?
Growth hormone and adrenocorticotropic hormone.
Changes to the breast in pregnancy?
Alveolar cell differentiation, lobule formation, hypertrophy of ductar-lobular-alveolar system
Hormones important for breast development in puberty?
Oestrogen
Growth hormone
How are the alveoli formed?
From the epithelia of the milk hills.
What is the impact of epidurals?
Loss of motility such as bladder control, low blood pressure and slower breathing.
Source of progesterone production in pregnancy?
Placenta, myometrium and placental membranes.