Determining Pregnancy

Question 1

Early pregnancy factor (EPF)

Answer 1

-Immunosuppressant protein in maternal serum (24-48 hours)

Question 2

Assay of hCG

Answer 2

This hormone is produced by the cells of the trophoblast and maintains the corpus luteum (remnants of the ovulated follicle)
-It is usually only produced if implantation occurs
-It can be found in the maternal urine at the end of the second week

Question 3

Which imaging technique can confirm pregnancy and when?

Answer 3

Ultrasound–at the end of 5th week

Question 4

Signs and symptoms of pregnancy

Answer 4

-Missed period
-Abdominal pain
-hCG lower than expected

Question 5

Tubal Pregnancy causes, sequelae, and treatment

Answer 5

Causes: Factors the delay or prevent transport
Sequelae: Tubal rupture and haemorrhage
Treatment: Termination of pregnancy, possible removal of tube

Question 6

Gastrulation

Answer 6

Process of formation of embryonic mesoderm, which converts the bilaminar disc to a trilaminar disc (3rd week)

Question 7

Notochord

Answer 7

A longitudinal rod of cells that forms the basis for the vertebral column

Question 8

Somite

Answer 8

One of the longitudinal series of segments into which the body is divided. There are 42-44 pairs in total

Question 9

Sclerotome

Answer 9

Cells of the somite which form vertebrae and ribs

Question 10

Dermatome

Answer 10

Cells of the somite which form the dermis of the skin
-Nerve that innervates this area of skin

Question 11

Myotome

Answer 11

-Cells of the somite which form skeletal muscle
-Nerve that innervates this area of muscle