During the fourth and fifth weeks

A. all organ systems have been established.
B. ossification centers form.
C. mother begins to feel movement.
D. limb buds appear.


Answer: D

Anatomy & Physiology

You might also like to view...

What part of the brain plays an especially important role in declarative memories?

a. hippocampus b. thalamus c. hypothalamus d. cerebellum e. Broca's area

Anatomy & Physiology

All of the following veins drain into the inferior vena cava EXCEPT the ________

A) lumbar veins B) external iliac vein C) gonadal veins D) adrenal veins

Anatomy & Physiology

Repolarization of a ventricular cardiomyocyte takes longer than repolarization of a typical neuron.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Excess CSF is removed from the subarachnoid space by

A. the choroid plexus. B. the median aperture. C. arachnoid villi. D. microglia. E. astrocytes.

Anatomy & Physiology