Two features of uterine tubes that help to propel an egg or zygote (fertilized egg) toward the uterus are

Cerebrospinal fluid is found in the

The _____ cells of the stomach secrete pepsinogen.

The lymphatic system includes  _______ that act as places where lymphocytes and macrophages interact with pathogens (infection causing microbes).

The part of the brain that is a relay station through which nearly all sensory signals pass as they travel to the cerebral cortex is the

The connective tissue that surrounds each fascicle within a muscle is 

The type of receptor that is sensitive to pain is the

The tunica intima of veins and arteries includes

Interneurons carry signals 

The ascending and descending tracts within in the spinal cord are composed of