A cell is a basic building unit of any tissue or organ. Bone cells constitute bone tissue which are arranged to form the structure we see outwardly. Following types of bone cells are found in the bone. Osteoclasts Osteoblasts Osteocytes Lining cells Different types of bone cells are programmed for kinds of functions. Osteoclasts The […]
Anatomy
Muscles – Types, Structure and Functions
Muscles are the contractile tissues [A tissue that is able to contract] that are responsible for performing various voluntary and involuntary movements in the body. These can be regarded as motors of the body. Different types of muscles in the body perform different functions according to their type and location. Muscle is so named because, […]
Cartilage Types, Structure and Function
Cartilage is a group of strong and resilient tissues composed of chondrocytes surrounded by specialized mucopolysaccharide tissue. It is found in many areas in the bodies including Joints Rib cage Ear Nose Bronchial tubes Intervertebral discs It is much more elastic than bone but is stiffer and less flexible than muscle. Types of Cartilage Hyaline […]
Bones in Human Body and Their Function
The bones in human body form the main supporting framework of the body. The skeleton is comprised of an arrangement of different bones in human body for the more efficient production of movements by the attached muscles. There are 206 bones in human body (The count may vary to 208 depending on whether the sternum […]
Carpal Bones Anatomy
The wrist is made up of eight carpal bones, which are arranged in two rows. The wrist or carpus is the region between metacarpals and distal ends of radius and ulna. [Read complete anatomy of the wrist] The carpus or the wrist functions to facilitate effective positioning of the hand and thus allowing efficient use […]
Radius Bone Anatomy
The radius bone is the lateral [on side of thumb] and slightly shorter of the two forearm bones. It rotates to produce the motion supination and pronation of the forearm. Supination is the movement which allows you to turn your palms skyward in a flexed elbow and pronation causes it to face the ground [in […]
Ulna Anatomy and Significance
The ulna is a long bone in the forearm. It lies medially and parallels to the radius, the other bone in the forearm It acts as stabilizing the bone, with the radius pivoting to produce the pronation and supination movement of the forearm. The bone participates in the formation of the elbow joint by articulating […]
Humerus Anatomy and Attachments
The humerus is a bone that connects the shoulder and elbow. The humerus is the largest bone in the upper limb and the only bone in the upper arm. Humerus movements participate in many days to day essential activities like throwing, lifting, writing and others which require movements of the shoulder joint. Proximally, humerus forms […]
Anatomy of Thoracic Cage or Rib Cage
The thoracic cage or rib cage is the skeletal framework that encloses the contents of the thorax. The thoracic cage or rib cage along with its contents form the thorax portion of the body. Roughly speaking, this is the area of the chest. The Thoracic cage consists of the 12 pairs of ribs with their […]
Thoracic Spine Anatomy
The thoracic spine is also called the dorsal spine and is constituted by the next 12 vertebrae after the cervical spine. These vertebrae are named T1 to T12 (or D1 to D12) from above downwards. If you palpate back of the neck from above downwards in the midline, you would come across a sudden projection […]