*Read from lecture notes Important key points Epidermis (ectoderm) Stratum corneum S. lucidum only in thick skin (sole, palms) S. granulosum 1st layer that has nuclei cuts off nutrition to cells above S. spinosum thickest layer together with S. basale = Malpighian layer S. basale cell renewal Dermis (mesoderm) Papillary layer Collagen type 3 Meissners’s…
Muscle groups of the neck Post-vertebral muscles Anterior vertebral muscles Lateral vertebral muscles Anterior neck muscles Superficial neck muscles _____________________________________________________________________ *Refer medical museum models Anterior vertebral muscles Muscles Rectus capitis anterior Longus capitis Longus colli Attachment base of the skull & bodies transverse processes of cervical upper 4 thoracic vertebrae Nerve supply C1 – C6…
Muscles of facial expression Functions regulators of 3 openings eyes mouth nose Sphincters (circular), dilators (radial) Facial expressions: secondary effects of their contractions Supplied by 7th cranial nerve Developed from 2nd pharyngeal arch Represent panniculus carnosus Actions Frontalis look upwards without moving head Corrugator supercilii frowing vertical wrinkling of forehead Orbicularis oculi tight closure of…
*Read from written notes before reading from this post Psoas major origin: transverse process of lumbar vertebrae intervertebral disc Insertion pass behind inguinal ligament Iliopsoas tendon inserted into lesser trochanter of femur Action flexes thigh on trunk at hip joint flexes trunk on thigh Nerve supply L2, L3 roots Quadriceps Adductor magnus pubic part…
CREDITS TO DR. NILESH KUMAR MITRA (Anatomy lecturer – International Medical University). His lecture notes is one of the sources I use for my blog posts and he is the best anatomy lecturer I’ve ever known. His efforts to educate and guide medical students in IMU will always be appreciated, by myself and all my…
Vertebral column Components Intervertebral disc Vertebrae Cervical –7 Thoracic –12 Lumbar – 5 Sacral – 5 Coccygeal – 4 Curvatures In the foetus & newborn C shaped with an anterior concavity In adults, 4 curvatures cervical (secondary) appears when infant raises his head thoracic (primary) lumbar (secondary) appears when infant stands sacral (primary) Parts of…
Note: Important for OSPE & read up foundation 1! Peripheral nervous system Made up of nerve cell bodies nerve fibres cranial nerves spinal nerves Connects CNS with peripheral structure Function afferent (sensory) neuron carry impulse from sensory receptors to CNS efferent (motor) neuron carry information from CNS to muscles/glands Accessory nerve 2 parts cranial part…
Muscles of the orbit Extraocular 4 rectus Superior rectus oculomotor nerve Inferior rectus oculomotor nerve Medial rectus oculomotor nerve Lateral rectus abducen nerve 2 oblique Superior oblique Inferior oblique Levator Palpebrae Superioris (LPS) Smooth muscles Superior tarsal Inferior tarsal Orbitalis Intraocular Sphincter pupillae Dilator pupillae Ciliaris Bony orbit of the eye Superior frontal bone Inferior…
General features of the ear 3 parts of the ear: External ear involved in hearing Anatomy: auricle: funnel shaped, elastic cartillage 3 parts: helix concha lobule external auditory meatus 2.5cm curved tube Outer 1/3: cartilage Inner 2/3: Bony (temporal bone) Modified sweat glands –> secrete cerumen prevents drying protects from insects Blood supply posterior artery…
Read written notes. Some images on cerebellum: Location of cerebellum: Largest part of hindbrain Occupies most of posterior cranial fossa Lies behind pons & medulla forming roof of 4th ventricle Separated from posterior part of cerebrum by tentorium cerebelli _____________________________________________________________________ Cerebral peduncles: Joined to the brain stem via: Superior cerebellar peduncle –> Midbrain Middle cerebellar…
