Things I find hard to remember Flashcards
What is autonomic supply to the pelvic organs via?
Pelvic plexus
Innervation of female genital tract
Parasympathetic S2-S4
Sympathetic from pelvic and ovarian plexuses
Innervation of erectile tissue
Parasympathetic S2-S4 via hypogastric plexus
Innervation of cremaster muscle
Genital branch of genitofemoral nerve
What do the internal iliac nodes drain (repro)?
Gluteal region Deep structures of penis Deep perineum Inferior pelvic viscera Prostate Seminal vesicle
What do the sacral nodes drain?
Prostate
Postero-inferior pelvic structures
Inferior rectum
What do the common iliac vessels drain?
External lymph nodes
Internal lymph nodes
Sacral lymph nodes
Difference between M and F false pelvis
M = deep F = shallow
Difference between M and F true pelvis
M = narrow and deep F = wide and shallow
Difference of pelvic inlet M and F
M = heart shaped F = oval shaped
Difference of obturator foramen M and F
M = Circular F = Oval
Ligaments of support to uterus
Cardinal
Pubocervical
Sacrocervical
Pelvic diaphragm
Lymphatic drainage of tesits
Lumbar
Para-aortic
What does the cardinal ligament contain?
Uterine arteries and veins
What is most part of the uterine body drained by?
External iliac nodes
What is the uterine cervix and upper vagina drained by?
Internal iliac nodes
What is the opening of the cervix drained by?
Sacral nodes
What umbilical structure persists during foetal circulation and as what?
Left umbilical vein
Foramen venosus
What are the axillary nodes?
Apical Central Pectoral / anterior Subscapular / posterior Humeral / lateral
Function of the perineal membrane
Fix and stabilise perineal body
Function of bulbospongiosus
Removal of residual urine after urination in males
Pulsatile emission of semen during ejaculation
Compress urethra
Females ; closes vaginal canal
Facilitates ejection of clitoris
Function of ischiocavernosus
Stabilises erection
Compresses crus penis and retards the return of blood through the veins therefore the organ maintains erect
Function of the perineal body
Point of attachment for muscle fibres of the pelvic floor and the perineum
Final support of pelvic viscera
Where is the internal urethral sphincter found?
Superficial perineal space
What does the internal pudendal vein drain?
Urethral bulb
Perianal Veins
Inferior haemorrhoidal veins
Function of coracoacromial arch
To prevent upward displacement of the humeral head
Actions of pec major
Adduction
internal rotation
Flexion
Action of supraspinatus
Abduction
What muscles cause lateral rotation of the shoulder?
Teres minor
Infraspinatus
Posterior fibres of the deltoid
Lower trapezius
What roots and cords are musculocutaneous nerve?
C5-C7
Lateral cord
What roots and cord are axillary nerve?
C5 + C7
Posterior cord
What roots and cord are median nerve?
C5-T1
Lateral and medial cords
What roots and cords are the radial nerve?
C5-T1
Posterior cord
What roots and cords are the ulnar nerve?
C8-T1
Medial cord
Actions of coracobrachialis
Flexion at shoulder
Adduction at shoulder
What is the position of the median nerve in relation to the axillary artery?
Lateral
What is the position of the ulnar nerve in relation to the brachial and ulnar arteries?
Medial
Action of brachioradialis
Flexion at elbow
What is the palmar fascia/aponeurosis a continuation of?
The palmaris longus
What is the flexor retinaculum?
A strong fibrous band which converts the concavity of the palmar surface (carpal bones) into a channel -> the carpal tunnel
Innervation of adductor pollicus
Ulnar nerve
What bones are found in the anatomical snuffbox?
Scaphoid
Trapezium
What forms extensor expansions?
4 extensor digitorum tends flattening
What do the superficial inguinal nodes drain?
Skin of buttocks
Thigh
Anterior calf
Dorsum of foot
What do popliteal nodes drain?
Posterior calf
Skin on plantar side of foot
Actions of sartorius
Flexion of hip
Flexion of knee
Abduction of hip
Lateral rotation of hip
What is the largest branch of the lumbar plexus?
Femoral nerve
Medial border of femoral triangle
Adductor longus
Lateral border of femoral triangle
Sartorius
Superior border of femoral triangle
Inguinal ligament
Base of femoral triangle
Pectinus
iliopsoas
Adductor longus
Nerve roots of the lumbar plexus
T12-L4
Nerve roots of sacral plexus
L4-S4
Actions of iliotibial tract
Extension of hip
Abduction of hip
Lateral rotation of hip
Lateral knee stabilisation
Sciatic nerve roots
L4-S3
What is the malleolar mortise formed from?
Transverse part of the posterior tibial ligament
Lower end of the tibia and fibia
When is the ankle joint unstable?
During plantar flexion
What are the lateral ligaments of the ankle?
Anterior talofibular
Posterior talofibular
Calcenofibular
Action of quadratus plantae
Flexion of the 4 digits
Nerve roots of the tibial nerve
L4-S3
What is the subtalar joint?
Talo-calcaneal joint
What type of joint is the subtalar joint?
Synovial plane
What type of joint is the talus-navicular joint?
Ball and socket
What helps with uneven ground / balancing on 1 leg?
Articulated ball and socket between talus and navicular bones allowing pivot
Joints between talus and calcaneous allowin side to side movements
Some movements at the transverse talar joint
Innervation of the quadratus plantae
Lateral plantar nerve
Function of foot arches
Distribute body weight
Act as shock absorbers
Function of calcaneonavicular ligament
Resist force of weight on bones
Maintain medial longitudinal arch
Contributes to subtalar joints
Function of popliteus
Unlocks knee by lateral rotation
Where does the popliteus arise?
Lateral collateral ligament
Passive factors maintaining the integrity of the arches?
Shape of the united bones
Plantar aponeurosis
Long plantar ligament
Short plantar ligament
Dynamic factors maintaining the integrity of the arches?
Intrinsic muscles of the foot
Long flexor tendons
Tendon of tibialis anterior and the fibularis longus
Type of joint between C1-C2
Synovial pivot
Type of joint between C1 - skull
Synovial ellipsoid
Joint type between vertebral bodies
Synovial plane
Joint type between intervertebral discs
secondary cartilagenous
Action of piriformis
Lateral rotation
Abduction
Bones that make up the subtalar joint
Talus
Calcaneous
Nerve roots of the superficial fibular nerve
L4-S1
Nerve roots of the deep fibular nerve
L4-S1
Nerve roots of the common fibular nerve
L4-S2
Superior boundary of the deep perineal pouch
Urogenital diaphragm
Inferior boundary of the deep perineal pouch
Perineal membrane
Lateral boundaries of the deep perineal pouch
Obturator internus
Where is the external urethral sphincter found?
Deep perineal pouch
What is the least mobile part of the uterus?
Cervix
Branch of subclavian supplying the breast
Internal thoracic
Branch of axillary supplying the breast
Lateral thoracic
Functions of clavicle
Protects brachial plexus
Attaches limb to body
Transmits force from limb to axial
Where does the coracoclavicular ligament attach to on the clavicle?
Conoid tubercle
Trapezoid line
Function of teres minor
Abduction
Lateral rotation
What is the upper trunk?
C5 + C6
What is the middle trunk?
C7
What is the lower trunk?
C8 + C9
What is different about the medial epidcondyle of the humerus compared to the lateral?
Larger
Extends more
Where does the biceps brachii attach?
Radial tuberosity
Where does the brachialis attach?
Ulnar tuberosity and coronoid process of the ulna
What are the articulating parts of the elbow?
Trochlear notch => Trochlea
Head of radius => capitulum
Olecranon => olecranon fossa
Where do superficial muscles of the anterior forearm originate?
Medial epicondyle
Where does the FDS attach?
Middle phalanges 2-5
Where does the FDP attach?
Distal phalanges 2-5
Medial border of anatomical snuffbox
Extensor pollcius longus
Where do the lumbricals originate from?
Flexor digitorum profundus
Innervation of Pectoralis major
Medial and lateral pectoral nerves
What cord does the medial and lateral pectoral nerves arise from?
Lateral cord
What does the axillary nerve supply?
Deltoid
Teres minor
What innervates the subscapularis?
Subscapular nerves
What innervates the teres major?
Subscapular nerves
What innervates the lattisimus dorsi?
Thoracodorsal nerve
What innervates the supra and infraspinatus?
Suprascapular nerve
What innervates the rhomboids?
Dorsal scapular nerve
What innervates levator scapulae?
C3 - C5
Where does the extensor digitorum arise from?
Lateral epicondyle
Where do the main superficial veins of the upper limb arise?
Subcutaneous tissue in the dorsum of the hand
What pathology can synovial sheaths covering the extensor tendons communicate with?
Synovial cyst / ganglion
Where does the dorsa; expansion wrap around?
Dorsum and sides of the head of metacarpal
Base of proximal phalanx
Causes of venous stasis
Muscular inactivity
External pressure on veins
What dermatomes make up the two halves of the foot?
S1 and L5
Why is the hip joint more stable than the shoulder match?
Ball of hip completely surrounded by socket of the pelvis
The shoulder joint is more like a golf ball resting on a tee
Function of iliofemoral ligament
Prevention of hyperextension
Function of pubofemoral ligament
Prevention of hyperabduction
Innervation of illiacus, psoas major and pectinus
illiacus - femoral
psoas major - L1-L3 anterior rami
Pectinus - femoral
When is the gluteus maximus muscle strong?
Standing from sitting position
Climbing stairs
When is the gluteus maximus relatively inactive?
Normal walking
Where do the abductor muscles insert?
Greater trochanter of femur
Injury to the nerves supplying the hip abductors can be caused by what? And what does this cause?
Hip replacement surgery
Trendelenberg gait
Action of rectus femoris on hip
Stabilises hip joint
Helps iliopsoas flex hip joint
What is found above the platella?
Quadriceps tendon
What is found below the platella?
Patellar ligament
Where does the Sartorius cross the hip and knee joints?
Hip anteriorly
Knee posteriorly
Lumbar plexus roots
T12-L4
Action of iliotibial tract
Extension of hip
Abduction of hip
External rotation of hip
Lateral knee stabilisation
Nerve supply to piriformis
S1 + S2
Nerve supply to obturator internus
L5 - S2
Which ligament of the ankle joint is the weakest?
Lateral
Another name for the medial ligament of the ankle
Deltoid ligament
What is flexion of the toes essential for?
The push off from the ground phase of the gait cycle
What does extensor pollicus brevis do?
Extends MCP joint
What does extensor pollicus longus do?
Extends MCP joint and IP joint
Function of subacromial bursae
Seperates superior surface of the supraspinatus from coracoacromial ligament, acromion and coracoid and deep deltoid muscle
Action of subscapularis
Internal rotation
What inserts onto greater tubercle of humerus?
Supraspinatus
infraspinatus
Teres minor
What inserts onto lesser tubercle of humerus?
Subscapularis
Function of sacrotuberus and sacrospinous ligaments
Strengthen sacroiliac joints
Function of pelvic floor
Divides pelvis from the perineum
Supports pelvic viscera
What covers the levator ani muscles and the coccygeus?
Dense layer of pelvic fascia
Difference between tunica albinguera and tunica vaginalis
Albinguera very inside
Vaginalis more outside it
What is the internal pudendal artery a branch of?
Superior gluteal artery which is a branch of the internal iliac artery
Supply to vas deferens, seminal vesicles, prostate and epididymis
Sympathetic L1 + L2 via hypogastric plexus
What is the corpus spongiosum around?
The urethra
What do the external iliac lymph nodes drain?
inferior pelvic structures
deep perineal structures
Sacral nodes
Seminal vesicles
Function of accessory glands (repro)
Support gametes and lubricate copulatory organs
What nerves are found in the spermatic cord?
Genital branch of the genito femoral nerve
Autonomic nerves
Where do the R and L testicular and ovarian veins drain to?
R => IVC
L => Left renal vein
What is found in older men in the prostate on histology?
Eosinophilic masses called corpora amylacae
What is a corneal ectopic pregnancy?
Ectopic pregnancy that develops in the intestinal portion of the fallopian tube invading through the uterine wall
Function of superficial and deep perineal muscles
Stabilise position of the perineal body