Answer by Gavin Harrington. Confidence votes 4.0K. A bitch is a female canine. The same word is often used in reference to something unpleasant or difficult to do. E.g- We had to deliver twenty large crates to the top floor, and the lift was out-that job was a bitch.
The internal jugular vein should be imaged and placed in the center of the ultrasound field. The needle should be angled at 40 to 60 degrees from the plane of the neck and 1 cm back from the middle of the ultrasound probe (Image 5).
P acts to powerfully inhibit the neuroendocrine reproductive. axis. Our first study, using the hypophyseal portal cannulation. approach, assessed directly the timing of the changes in GnRH. secretion that follow both an abrupt decrease and an increase. in circulating P concentrations. To avoid potential PâE inter-. actions, short-term ovariectomized (OVX) ewes were used.