“Mary”, a 9 year-old German Shepherd had bladder trauma after being hit by PeeWee Herman’s bicycle. This trauma left her bladder unable to contract with very little, if any, bladder muscle (detrusor) tone. In order to stimulate bladder contractions, which drug would Mary benefit from?

Annelids (Phyla Annelida) The annelid body is composed of ringlike segments. The segments of the annelid body are separated by septa. Each segment contains a pair of excretory organs, a ganglion, and, in most marine annelids, a set of reproductive organs. Anterior and posterior segments contain light, chemo-, and touch receptors. Segments are connected by a ventral nerve cord that includes an anterior brain region, and by a closed circulatory system. Annelids move by contracting their segments. The fluid-filled coelom acts as a hydrostatic skeleton. Each segment typically possesses chaetae, chitin bristles that help anchor the worm. Annelids have a closed circulatory system but a segmented excretory system. Annelids have a closed circulatory system; the dorsal vessel is connected to the ventral vessel by smaller vessels in the body wall. Each segment contains a pair of nephridia that excrete wastes out of the body via the coelom and excretory tubes. Annelids vary greatly in size and habits. Marine worms used to be considered a clade, but are now understood to be paraphyletic. Annelids are divided into two main clades, the Errantia and Sedentaria. Within the Sedentaria, the Clitellata includes earthworms and leeches. Screenshot 2025-03-09 at 11.44.45 PM.png Figure 5. Diagram of the body of an annelid. The earthworm body plan is based on repeated body segments. Segments are separated internally from each other by septa.

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What structure houses the middle and inner ear structures?

The white arrow below is referring to a 

The masseter muscle originates on the zygomatic arch and inserts on the lateral mandible. What is the action of this muscle?

A.  Identify the tooth number that has obvious caries. B.  Identify the classification of the caries. 

A rotating horizontal disk with a radius of 2 m and a mass of kg has an initial angular velocity of rad/s. Two objects, each modeled as point masses, are dropped onto the disk’s surface and adhere to it. Object A has a mass of kg and object B has a mass of kg. r1 = 1.2 m and r2 = 1.5 m.  Determine the final angular speed of the system. Express your answer in rad/s.  

A uniform bar with a mass of m = kg and a length of L = m is rotating about a vertical axis fixed at its left end. The figure shows the tangential velocity of a point located at a distance of 1/2 L from the rotation axis. t1 = 0, t2 = 2 s, t3 = 5 s, v1 = 5 m/s, v2 = 10 m/s, v3 = 15 m/s, and v4 = 20 m/s. Determine the rotational kinetic energy of the bar at time t = 3 s. Express your answer in joules (J).

EXAM Answer all questions in the exam document embedded below. After you completed your exam, scan your pages into a single PDF, name it midterm_Student Name (example: midterm_JohnSmith).  Before uploading, verify your file has all the pages you need to submit. Upload it by clicking on “Choose a File” button in “Question 1” below. You are only allowed to upload one file to a question. Then click “Submit Quiz”. You may get a warning saying that you have some unanswered questions if you do not use optional file upload sections, click OK to submit anyway. View exam document here. Use double-sided arrow icon on the tool bar below to preview it in full screen mode. You can also download it by clicking on the download icon to the right of the document and open it on your computer. midterm – 2025.pdf