Anesthesia Key

The Ear Print Section Listen Big Picture The external ear collects sound waves and transports them through the external acoustic meatus to the tympanic membrane. The tympanic membrane vibrates, setting…

Cutaneous Innervation and Vasculature of the Face Print Section Listen Big Picture The sensory innervation of the face is provided by the three divisions of the trigeminal nerve [cranial nerve…

Anatomy of the Scalp Print Section Listen Big Picture The scalp consists of five layers of tissue. The five layers, from superficial to deep, are skin, subcutaneous connective tissue, a…

Overview of the Infratemporal Fossa Print Section Listen Big Picture The infratemporal fossa is the region deep to the ramus of the mandible. The infratemporal fossa accommodates the insertion of…

Anatomy of the Brain Print Section Listen Big Picture The brain contains millions of neurons arranged in a vast array of synaptic connections that provide seemingly unfathomable circuitry. Through that…

Overview of the Pterygopalatine Fossa Print Section Listen Big Picture The pterygopalatine fossa is the region between the pterygomaxillary fissure and the nasal cavity. The fossa accommodates branches of the…

Midgut Print Section Listen Big Picture The midgut consists of the distal half of the duodenum, jejunum, ileum, cecum, ascending colon, and the proximal half of the transverse colon (Figure…

Partitioning of the Abdominal Region Print Section Listen Big Picture The abdomen typically is described topographically using two methods. The first method partitions the abdomen into four quadrants. The second…

Muscles Print Section Listen Big Picture The diaphragm forms the superior and much of the posterior border of the posterior abdominal wall. In addition, the psoas major, iliacus, and quadratus…

Pelvic Floor Print Section Listen Big Picture The pelvic diaphragm forms the floor of the pelvis and serves as a bed for the pelvic organs. Pelvic Diaphragm The pelvic diaphragm…