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…

Big Picture Print Section Listen The foregut consists of the distal end of the esophagus, the stomach, and a portion of the duodenum. In addition, the pancreas, liver, and gallbladder…

Male Reproductive System Print Section Listen Big Picture The male reproductive system primarily consists of the paired testes and the penis. In addition, accessory sex glands contribute to seminal fluid….

Female Reproductive System Print Section Listen Big Picture The female reproductive system consists of the ovaries, uterine tubes, uterus, vagina, and external genitalia. These organs remain underdeveloped for about the…

Peritoneum Print Section Listen Big Picture The abdominopelvic cavity is lined with a serous membrane called the peritoneum. This membrane expands from the internal surface of the abdominal wall to…