38 - Perineal body

The perineal body (or central tendon of perineum) is a pyramidal fibromuscular mass in the middle line of the perineum at the junction between the urogenital triangle and the anal triangle . It is found in both males and females. In males, it is found between the bulb of penis and the anus; in females, is found between the vagina and anus, and about 1.25 cm in front of the latter.

The perineal

37 - Muscles of Perineum/Urogenital region

SUPERFICIAL MUSCLES OF PERINEUM :
1. Superficial Transverse perinei
2. Bulbospongiosus (Bulbocavernosus in older textbooks)
3. Ischiocavernosus

DEEP MUSCLES OF PERINEUM :
1. Deep Transverse Perinei
2. Sphincter urethrae

37 - Skull Foramina

1. Anterior Palatine Foramen
2. Palatine Process of Maxilla
3. Palatine
4. Greater Palatine Foramen
5. Lesser Palatine Foramen
6. Pterygoid Processes of Sphenoid
7. Zygomatic Process
8. Squamous Part of Temporal Bone
9. Mandibular Fossa
10. Styloid Process
11. Stylomastoid Foramen
12. Mastoid Process
13. Mastoid Foramen
14. Superior Nuchal Line
15. External Occipital

36 - Musculocutaneous nerve

PATH OF THE NERVE :

The musculocutaneous nerve arises from the lateral cord of the brachial plexus, opposite the lower border of the Pectoralis minor, its fibers being derived from C5, C6, C7.

It penetrates the Coracobrachialis muscle and passes obliquely between the Biceps brachii and the Brachialis, to the lateral side of the arm; a little above the elbow it pierces the deep fascia lateral

35 - Renal corpuscle ( Glomerulus ) Microscopic anatomy

A – Renal corpuscle
B – Proximal tubule
C – Distal convoluted tubule
D – Juxtaglomerular apparatus
1. Basement membrane (Basal lamina)
2. Bowman's capsule – parietal layer
3. Bowman's capsule – visceral layer
3a. Pedicels (podocytes)
3b. Podocyte

4. Bowman's space (urinary space)
5a. Mesangium – Intraglomerular cell
5b. Mesangium – Extraglomerular cell
6. Granular cells (Juxtaglomerular cells)

33 - Nerve supply of the Tongue

Motor supply :

All the intrinsic muscles, except the palatoglossus are supplied by the hypoglossal nerve. the palatoglossus is supplied by the cranial part of accessory nerve through the pharyngeal plexus .

Sensory supply :

Anterior 2/3rd of the tongue - lingual nerve is the nerve of general sensation and the chordatympani is the nerve of taste for the anterior two-thirds of the tongue .

32 - Hemivertebrae

*First read this question that appeared in the May 2006 AIIMS Medical Postgraduation Entrance Examination .


Q: Lumbar hemivertebra results due to the abnormal development of ?


a. dorsal sclerotome
b. intermediate cell mass
c. notochord
d. ventral sclerotome


answer d. ventral sclerotome

Now after you have seen the answer, u have to know what hemivertebra actually means .


The congenital