ANSC 320 Lecture 10: ANSC 320 Lecture 10
Document Summary
Begins at ovulation: formation of cl or luteinization, begin with hemorrhagicum. Theca interna and granulosa cells undergo luteinization. Large luteal = granulosa: small luteal = theca interna, basement membrane = connective tissue. Begins with basement membrane disintegration after ovulation: humans and primates from islets. Large luteal cells: also granulosal lutein cells, from granulosa cells, contain secretory granules full of hormones, oxytocin in cl for the cycle, relaxin in cl for pregnancy. Small luteal cells: also called thecal-lutein cells, contain lipid droplets, no secretory granules. Large luteal cells rarely multiple: cl size based on increase in volume. Small luteal cells increase in number: contribute to size. Cl vigor: based on the follicle prior o ovulation, number of luteal cells, vascularization. Also increases in non-steroidogenic cells: fibroblasts, capillary cells, and eosinophils. Marked transition between the luteal phase and follicular phase. Luteolysis: disintegration or decomposition of the corpus luteum. Controlled by: cl, oxytocin, progesterone, uterus, prostaglandin, except in the dog.
