PHYSIOLOGY OFPHYSIOLOGY OFTHE REPRODUCTIVE SYSTEM THE REPRODUCTIVE SYSTEM

Dr Sherwan R Shal

MD, MSc, PhD

ANATOMY OF THE MALE REPRODUCTIVE SYSTEM

TESTISSCROTUMPENISSEMINAL VESSICLES, PROSTATE GLAND,

BULBOURETHRAL GLANDSEPIDIDYMUS, VAS DEFERENS, URETHRA

TESTES

PRIMARY REPRODUCTIVE ORGANS OR GONADS

PRODUCTION OF SPERMSUSPENDED OUTSIDE THE BODY

CAVITY BY SCROTUM

PENIS

ERECTILE TISSSUE (VASCULAR)ERECTION RESULTS FROM GORGING

TISSUE WITH BLOODERECTION IS A PARASYMPATHETIC

SPINAL REFLEX TO TACTILE AND OTHER STIMULATION ENHANCED BY SYMPATHETIC INHIBITION

SEMINAL VESSICLES, PROSTATE GLAND, BULBOURETHRAL GLANDS

PROVIDE THE BULK OF THE SEMEN, A MIXTURE OF SECRETIONS, SPERM AND MUCOUS

FRUCTOSE AND PROSTAGLANDINS FROM SEMINAL VESSICLES

ALKALINITY AND CLOTTING ENZYMES FROM PROSTATE

LUBRICANT FOR INTERCOURSE FROM BULBOURETHRAL GLANDS

EPIDIDYMUS, VAS DEFERENS, URETHRA: EJACULATION

ROUTE OF EXIT OF SPERM DUCTUS DEFERNS STORES SPERM DURING EMMISSION PHASE OF EJACULATION

SPERM ARE EMPTIED INTO URETHRA BY SYMPATHETICALLY INDUCED CONTRACTIONS

MOTOR NEURON INDUCED CONTRACTIONS OF SKELETAL MUSCLES AT BASE OF PENIS EXPELL THE SEMEN DURING EXPULSION PHASE OF EJACULATION

EJACULATION IS A PART OF ORGASM

ANATOMY OF THE FEMALE REPRODUCTIVE SYSTEM

VAGINAUTERUSCERVIXCLITORISLABIAOVARIESOVIDUCTS

VAGINA

ENTRANCE TO UTERUSMUSCULAR, EXPANSIBLE TUBE

UTERUS

MAINTAINS FETUS DURING PREGNANCY

MUSCULATURE CONTRACTS TO EXPEL FETUS AT BIRTH

CERVIX

LOWEST PORTION OF THE UTERUSPROJECTS INTO VAGINACERVICAL CANAL SERVES AS

PATHWAY FOR SPERM DURING SEXUAL INTERCOURSE

PASSAGWAY FOR DELIVERY OF BABY FROM UTERUS

CLITORIS

ERECTILE TISSUE ANALOGOUS TO PENIS IN MALE

SENSITIVE AND EROTICAT FOLD OF LABIA MINORA

OVARIES

FEMALE GONADSIN ABDOMENPRODUCE OVASECRETE ESTROGEN AND

PROGESTERONE

OVIDUCTS

LINK OVARIES TO UTERUSFALOPIAN OR UTERINE TUBESPICK UP OVA AT OVULATIONSITE FOR FERTILIZATION

MALE REPRODUCTIVE PHYSIOLOGY

DEPENDS ON TESTOSTERONETESTICULAR LEYDIG CELLS SECRETE

TESTOSTERONETESTES DESCEND AND PASS OUT OF

ABDOMINAL CAVITY

PUBERTY IN THE MALE

USUALLY 10-14 YEARS OLDENDOCRINE,PHYSICAL, AND

BEHAVIORALLEYDIG CELLS “AWAKE”

TESTOSTERONE: AT PUBERTY

SPERMATOGENESISACCESSORY SEX GLANDS ENLARGE

AND BECOME SECRETORYPENIS AND SCROTUM ENLARGELIBIDO

EFFECTS OF TESTOSTERONE ON SECONDARY SEX CHARACTERISTICS

HAIR GROWTH PATTERNDEEP VOICETHICK SKINMALE BODY CONFIGURATION

OTHER EFFECTS OF TESTOSTERONE

BONE GROWTHPROTEIN ANABOLIC EFFECTEVENTUALLY STOPS BONE GROWTHAGGRESSIVE BEHAVIOR(IN ANIMALS)MALE MENOPAUSE

CONTROL OF TESTICULAR FUNCTION

HYPOTHALAMUS

ANTERIOR PITUITARY

GRH +

TESTES SERTOLI

CELL

LEYDIGCELL

TESTOSTERONEINHIBIN

SPERMATOGENESIS

FSH LH

FEMALE REPRODUCTIVE PHYSIOLOGY

CYCLICOOGENESISFERTILIZATIONPREGNANCYDELIVERYMENOPAUSE

CONTROL OF FSH AND LH SECRETION DURING FOLLICULAR PHASE

HYPOTHALAMUS

ANTERIOR PITUITARY

GRH +

OVARY

LOW LEVELS OF ESTROGENINHIBIN

FSH LH

CONTROL OF LH SURGE AT OVULATION

HYPOTHALAMUS

ANTERIOR PITUITARY

GNRH +

OVARY

HIGH LEVELS OF ESTROGENOVULATION

FSH LH

MATURE FOLLICLE

FEEDBACK CONTROL DURING LUTEAL PHASE

HYPOTHALAMUS

ANTERIOR PITUITARY

GNRH +

OVARY

HIGH LEVELS OF

PROGESTERONE

LH

CORPUS LUTEUM

MODERATE LEVELS OF ESTROGEN

HORMONES OF PREGNANCY

PLACENTA IS ORGAN OF EXCHANGEPLACENTA SECRETES HUMAN

CHORIONIC GONADOTROPIN (HCG)-PROLONGS LIFE OF CORPUS LUTEUM

ESTROGEN AND PROGESTERONE LEVELS EVEN HIGHER NOW

AFTER 10 WEEKS PLACENTA TAKES OVER

Wish you a nice baby !