difference between anatomy

Difference between two tiny muscles of middle ear cavity : tensor tympani and stapedius muscles Topics Tensor tympani Stapedius Origin : Both cartilaginous and bony part of auditory tube Interior of pyramid which situated on the posterior wall of middle ear cavity Insertion Medial aspect of neck of malleus Posterior aspect of neck of stapes Blood supply Superior tympanic artery branch of middle meningeal artery Posterior auricular artery , a branch of external carotid artery Anterior tympanic artery and middle meningeal artery Nerve supply Nerve to medial pterygoid branch of mandibular division of trigeminal nerve Facial nerve Nerve related with ganglia Nerve to medial pterygoid passes through otic ganglia None Functions It tenses the tympanic membrane and push the base of stapes more tightly into the fenestra vestibule Draws the stapes later...

1.       Difference between malleus , Incus and Stapes Topics Malleus Incus Stapes Shape like  mallet   like premolar tooth (like anvil)  it looks like stirrup Length Longest, about 8-9 mm Medium Shortest Parts Head:  Neck:  Handle: Anterior process:  Lateral process:  Body Short process :  Long process :  Head : Neck : Anterior &  posterior limbs Base or foot- plate :  Development 1 st  pharyngeal arch 1 st  pharyngeal arch 2 nd  pharyngeal arch Cartilage Develops from dorsal end of Meckel’s cartilage   Develops from dorsal extremity of Meckel’s cartilage Develops from hyoid arch cartilage Muscle attachment Tensor tympa...

Difference between male and female pelvis Topics male pelvis female pelvis subpubic angle 50° to 60° 80° to 85° ischiopubic rami everted and rough thinner and not everted ischial spine inverted and less widely apart everted and wider apart greater sciatic notch is narrower and 50° wider and 75° sacral promontory more project anteriorly less projection transverse diameter situated nearer to sacral promontory situated away from the sacral promontory body of the 1 st sacral vertebra forms more than one third of the base forms one-third or less of the base pelvic cavity is more longer and conical is more shorter and cylindrical pelvic outlet smaller than the inlet wider than the male chilotic line sacral part is longer than the pelvic part pelvis part is longer than the sacral part we...

Difference between false ligament of liver  and true ligament of liver false ligament of liver  true ligament of liver  They are peritoneal folds They are remnant of fetal structures Usually it has two layers It is a cord like structure It is formed by simple squamous epithelium with little connective tissue It is formed by connective tissue One ligament continuous with other There is no continuation with each other Example : ·         Falciform ligament ·         Coronary ligament ·         Right triangular lig ·         Left triangular lig ·         Lesser omentum Example : ·         Ligamentum teres hepatis ·  ...

Difference between superficial and deep inguinal ring Superficial  inguinal ring Deep inguinal ring It is an oblique triangular gap in the aponeurosis of external oblique abdominis It is formed by an oval gap in the fascia transversalis It is situated 1.25cm above and lateral to pubic crest It is situated 1.25cm above the mid inguinal point which is a mid point between the anterior superior iliac spine and symphysis pubis It is palpable in normal condition It is not palpable It forms exit of inguinal canal It forms the entrance of the inguinal canal It is situated below and medial to the inferior epigastric artery It is situated above and lateral to the inferior epigastric artery It is smaller in female   It is larger in male