The maximum pressure exerted in the arteries is when blood is ejected into them during:
a. inhalation
b. exhalation
c. exercise
d. diastole
e. systole
e
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The chorion ________ and the amnion ________.
A. projects into the endometrium and helps form the placenta; is a membrane that encircles a developing embryo B. is the site from which primary germ layers develop; is the site from which secondary germ layers develop C. is the part of the blastocyst that is not the inner cell mass; is the inner cell mass D. is the outer protective membrane around the embryo; is the site where an embryo is implanted into the uterus
Integrating centers typically contain large numbers of
A) Interneurons. B) Sensory neurons. C) Efferent neurons. D) Motor neurons.
Osteoclasts and osteoblasts that travel through or across the bone surface removing and replacing old bone matrix are collectively called a(n) ________.
A. basic multicellular unit B. osteogenic repair unit C. bone reformation unit D. osteon E. callus multicellular unit
This connective tissue is made of hard calcified matrix and stores calcium and other minerals
A) bone (osseous tissue) B) dense irregular C) hyaline cartilage D) elastic cartilage