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abducts, intorts, and depress eye. right medial, superior, and inferior recti (superior and inferior oblique muscles are the synergists) 2. 1. oblique, inferior. head, extraocular (left/right) orbital surface of maxilla, lateral to lacrimal groove. laterally onto eyeball, deep to lateral rectus, by a short flat tendon.
The human skeleton is composed of both fused and individual bones supported by ligaments, tendons, muscles and cartilage. It is a complex structure with two distinct divisions; the axial skeleton , which includes the vertebral column , and the appendicular skeleton .
Structures. Muscles. See also. v. t. e. This article contains a list of organs in the human body. It is widely believed that there are 79 organs (this number goes up if you count each bone and muscle as an organ on their own, which is becoming a more common practice [1][2]); however, there is no universal standard definition of what constitutes ...
The internal human body includes organs, teeth, bones, muscle, tendons, ligaments, blood vessels and blood, lymphatic vessels and lymph. The study of the human body includes anatomy, physiology, histology and embryology. The body varies anatomically in known ways. Physiology focuses on the systems and organs of the human body and their functions.
The muscular system is an organ system consisting of skeletal, smooth, and cardiac muscle. It permits movement of the body, maintains posture, and circulates blood throughout the body. [1] The muscular systems in vertebrates are controlled through the nervous system although some muscles (such as the cardiac muscle) can be completely autonomous.
In human anatomy, the lower leg is the part of the lower limb that lies between the kneeand the ankle.[1] Anatomists restrict the term legto this use, rather than to the entire lower limb.[6] The thighis between the hipand kneeand makes up the rest of the lower limb.[1] The term lower limbor lower extremityis commonly used to describe all of ...
The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. [1] The bone mass in the skeleton makes up about 14% of the total body weight (ca. 10–11 kg for an average person) and reaches maximum mass ...
In humans, the bladder is a hollow muscular organ situated at the base of the pelvis. In gross anatomy , the bladder can be divided into a broad fundus (base), a body, an apex, and a neck. [ 5 ] The apex (also called the vertex) is directed forward toward the upper part of the pubic symphysis , and from there the median umbilical ligament ...