Engines that do not have a water cooling system can not use a heater core; one alternative is to guide air around the (very hot) engine exhaust manifold and then into the vehicle's interior. Temperature control is achieved by mixing with unheated outside air.
1. A widening of the prevertebral soft tissue is often associated with injury to the cervical spine. Injury to the cervical spine may be accompanied by pre and/or paravertebral haematoma, which is radiographically demonstrated as an abnormal increase within the width of the prevertebral space [1] , [2] and [3] .his study was undertaken to explore the diagnostic value of prevertebral soft tissue swelling with special reference to the association of this sign with the presence and degree of cervical spine injuries.
The mesovarium is a fold of peritoneum that holds the ovary in place. The suspensory ligament anchors the upper region of the ovary to the pelvic wall. Attached to this ligament are blood vessels and nerves, which enter the ovary at the hilus. The ovarian ligament anchors the lower end of the ovary to the uterus. The following two tissues cover the outside of the ovary: The germinal epithelium is an outer layer of simple epithelium.