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Human anatomy is the study of the shape and form of the human body. The human body has four limbs (two arms and two legs), a head and a neck , which connect to the torso . The body's shape is determined by a strong skeleton made of bone and cartilage , surrounded by fat ( adipose tissue ), muscle, connective tissue , organs, and other structures.
Functionally, the muscles of facial expression are arranged in groups around the orbits, nose, and mouth. The muscles acting on the lips: Buccinator; Orbicularis oris (a complex of muscles, formerly thought to be a single sphincter or ring of muscle) Anchor point for several muscles Modiolus; Lip elevation Levator labii superioris
The skeletal muscles of the body typically come in seven different general shapes. This figure shows the human body with the major muscle groups labeled. The gross anatomy of a muscle is the most important indicator of its role in the body. One particularly important aspect of gross anatomy of muscles is pennation or lack thereof. In most ...
Human penis. In human anatomy, the penis ( / ˈpiːnɪs /; pl.: penises or penes; from the Latin pēnis, initially "tail" [1]) is an external male sex organ ( intromittent organ) that additionally serves as the urinary duct. The main parts are the root, body, the epithelium of the penis including the shaft skin, and the foreskin covering the glans.
The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...
The cat's tongue is covered in a mucous membrane and the dorsal aspect has 5 types of sharp spines, or papillae. The 5 papillae are filiform, fungiform, foliate, vallate, and conical. [2] A cat's sense of smell and taste work closely together, having a vomeronasal organ that allows them to use their tongue as scent tasters, [3] while its ...
Horses have 205 bones, which are divided into the appendicular skeleton (the legs) and the axial skeleton (the skull, vertebral column, sternum, and ribs ). Both pelvic and thoracic limbs contain the same number of bones, 20 bones per limb. Bones are connected to muscles via tendons and other bones via ligaments.
Gastrointestinal tract. In humans, the anus ( pl.: anuses or ani; from Latin ānus, "ring", "circle") [1] [2] is the external opening of the rectum located inside the intergluteal cleft. Two sphincters control the exit of feces from the body during an act of defecation, which is the primary function of the anus.