Cecum is a pouch at beginning of large intestine located on right side. Receives chyme from ileum and connects to ascending colon. Separated from ileum by ileocecal valve and colon by cecocolic junction
Superficial two-headed muscle located in back of lower leg. Extends from knee to heel across three joints. Forms part of calf muscle with soleus muscle. 39% of individuals have sesamoid bone called fabella in lateral head
Arm refers to the upper limb between shoulder and elbow joints. Distal part between elbow and wrist is forearm, beyond wrist is hand. Shoulder girdle and axilla are components of arm
Uvula is a conic projection from soft palate containing glands and muscles. Muscular part shortens and broadens uvula for swallowing. Controlled by pharyngeal branch of vagus nerve
Eustachian tube connects nasopharynx to middle ear, measuring 35mm long. Normally collapsed, opens during swallowing and pressure changes. Contains bony (12mm) and cartilaginous (24mm) parts. Four muscles control tube opening: levator veli palatini, salpingopharyngeus, tensor tympani, tensor veli palatini
Testicles are male gonads located in scrotum, extending from abdominal wall. Average adult testicle measures 5x2x3 cm, with normal volume 15-25 cm³. Testicles are covered by tunica albuginea and contain seminiferous tubules. Testicular temperature must be slightly below body temperature for optimal sperm production