Basic Science And Anatomy Flashcards
What spinal level do pain signals from the uterus, adnexae, ilium, colon and rectum travel via?
T10 - L1
Normal range of prolactin
50-450
Normal range of LH
2-12
Normal range of FSH
2 - 12
Normal range of Oestradiol
130-800
Arterial supply of the vagina
Vaginal artery and anastomoses with the uterine artery superiorly
At what gestation do limb buds develop
8 weeks
Average head circumference of a new born in the UK in CM
35 CM
Average length of the newborn in the UK in cm
50 CM
Average weight of a newborn in the UK in KG
3.5 KG
Borders of the femoral triangle
Lateral border = Medial border of sartorius
Superior border = inguinal ligament
Medial border = adductor longus
Branches of the anterior division of the internal iliac artery
Umbilical Obturator Inferior vesical Middle rectal Internal pudendal Inferior gluteal Uterine Vaginal
Branches of the pudendal nerve
Inferior rectal nerves
Dorsal nerve of the penis / clitoris
Perineal nerve
Cause of uterine didelphys
Failure of fusion of the Müllerian duct.
Causes double uterine body, cervix and vagina
Clinical effect of injury to the femoral nerve
Quadriceps muscle weakness –> weak knee extension.
Anterior thigh numbness.
Decreased / absent knee jerk
Clinical effect of injury to the sciatic nerve
Affects all muscles below the knee.
Foot drop, loss of knee flexion.
Inability to walk.
Loss of ankle jerk Normal knee jerk
Contents of the inguinal canal
Spermatic cord or round ligament
and Ilioinguinal nerve
Dermatome supply of anterior upper arm
C5
Dermatome supply of level of the nipple
T4
Dermatome supply of level of umbilicus
T10
Dermatome supply of medial ante-cubital fossa
T1
Dermatome supply of the acromio-clavicular joint
C4
Dermatome supply of the axilla
T2
Dermatome supply of the little finger
C8
Dermatome supply of the mid anterior thigh
L2
Dermatome supply of the middle finger
C7
Dermatome supply of the perianal area
S5
Dermatome supply of the thumb
c6
Duration for spermatogenesis
70-75 days
Floor of the femoral triangle
Adductor longus
Part of adductor brevis
Pectineus
Iliopsoas
Functions of the phrenic nerve
motor to the diaphragm
Sensory to the fibrous pericardium, mediastinal pleura, and diaphragmatic peritoneum.
How many umbilical arteries and veins
2 arteries
1 vein
In early pregnancy what action should be taken if the uterus is retroverted?
None - normal variant
unless fixed retroverted and becomes incarcerated in the pelvis during 2ndT onwards
Management of a fixed retroverted uterus which becomes incarcerated in the pelvis in 2nd T
Manual reduction
+/- bladder drainage with catheter
Or manual reduction under spinal
Failing that - laparoscopy to re-position uterus
Length of the inguinal canal in adults
4cm
Length of vagina
6 - 7.5cm anteriorly
9cm posteriorly
Lymph drainage of base of cervix
Internal iliac lymph nodes
Lymphatic drainage of the bladder
External Iliac nodes
Fundus to internal iliac nodes
Some to common Iliac and sacral
Lymphatic drainage of the distal rectum
Internal iliac nodes
Nerve root control of knee-jerk
L3/4
Nerve root of the femoral nerve
L2-4
Nerve root of the sciatic nerve
L4-5, S1-3
Nerve supply of the vagina
Lower part = pudendal nerve, inferior hypogastic and uterovaginal plexuses
Nerve supply of the vulva
Pudendal nerve gives branches of inferior rectal branch, divides into perineal nerve and dorsal nerve of the clitoris.
Perineal nerve = sensory to the vulva. Dorsal nerve of clitoris = sensory.
Sensation from the mons passes via the ilioinguinal and genitofemoral nerves.
Ovarian arteries are branches from where
Direct branch off abdominal aorta
Relation of the phrenic nerve to the hilum of the lung
Passes anterior
Relation of the uterine artery to the broad ligament and ureter
Lies in the base of the boad ligament.
Crosses anterior to the ureter
Sensory supply of the perineum
Posterior femoral cutaneous nerve.
Shape of external cervical os
In primips = circular
Multips= slit
Signs and symptoms of femoral nerve injury
Numbness over anterior thigh and medial leg
Weakness of the quadriceps muscle causing weak knee extension
Decreased knee-jerk
Signs and symptoms of sciatic nerve damage
Affects all muscles below the knee causing loss of knee flexion, foot drop and inability to walk Loss of ankle jerk Normal knee jerk
Symptoms of lateral cutaneous nerve injury / compression
Pain - paraesthesia / sensory loss over upper lateral thigh
The perineal body is the point of attachment for:
Bulbospongiosus Deep transverse perineal muscles External anal sphincter Pubococcygeus Superficial transverse perineal muscles Levator ani