Search results
Results from the WOW.Com Content Network
Each vertebra (pl.: vertebrae) is an irregular bone with a complex structure composed of bone and some hyaline cartilage, that make up the vertebral column or spine, of vertebrates. The proportions of the vertebrae differ according to their spinal segment and the particular species.
The number of vertebrae in a region can vary but overall the number remains the same. In a human spinal column, there are normally 33 vertebrae. [3] The upper 24 pre-sacral vertebrae are articulating and separated from each other by intervertebral discs, and the lower nine are fused in adults, five in the sacrum and four in the coccyx, or tailbone.
of or pertaining to the spine, the vertebra: Greek σφόνδῠλος / σπόνδυλος (sphóndulos, spóndulos), the spine spondylitis: squamos(o)-denoting something as "full of scales" or "scaly" Latin squāmōsus, full of scales, scaly squamous cell-stalsis: contraction Greek στέλλω (stéllō), I dispatch, place, set peristalsis ...
The sacrum in the horse is made up of five fused vertebrae. [14] In birds, the sacral vertebrae are fused with the lumbar and some caudal and thoracic vertebrae to form a single structure called the synsacrum. In the frog, the ilium is elongated and forms a mobile joint with the sacrum that acts as an additional limb to give more power to its ...
The axial skeleton (80 bones) is formed by the vertebral column (32–34 bones; the number of the vertebrae differs from human to human as the lower 2 parts, sacral and coccygeal bone may vary in length), a part of the rib cage (12 pairs of ribs and the sternum), and the skull (22 bones and 7 associated bones).
In human anatomy, the five vertebrae are between the rib cage and the pelvis.They are the largest segments of the vertebral column and are characterized by the absence of the foramen transversarium within the transverse process (since it is only found in the cervical region) and by the absence of facets on the sides of the body (as found only in the thoracic region).
a-, an-: Pronunciation: /ə/, /a/, /ən/, /an/.Origin: Ancient Greek: ἀ-, ἀν-(a, an-). Meaning: a prefix used to make words with a sense opposite to that of the ...
The rib cage or thoracic cage is an endoskeletal enclosure in the thorax of most vertebrates that comprises the ribs, vertebral column and sternum, which protect the vital organs of the thoracic cavity, such as the heart, lungs and great vessels and support the shoulder girdle to form the core part of the axial skeleton.